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Finding the Fourth Proportional to 12,798.01, 19,197.02 and 4,478.30

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Solution

The fourth proportional to 12,798.01, 19,197.02 and 4,478.30 is: 6,717.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.01 : 19,197.02 = 4,478.30 : x
  2. Step 2: Convert to fraction form
    12,798.01/19,197.02 = 4,478.30/x
  3. Step 3: Cross multiply
    12,798.01x = 19,197.02 × 4,478.30
  4. Step 4: Simplify right side
    12,798.01x = 85,970,014.67
  5. Step 5: Solve for x
    x = 85,970,014.67/12,798.01
  6. Step 6: Final answer
    x = 6,717.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.