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Finding the Fourth Proportional to 8,985.42, 13,478.13 and 2,412.27

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Solution

The fourth proportional to 8,985.42, 13,478.13 and 2,412.27 is: 3,618.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.42 : 13,478.13 = 2,412.27 : x
  2. Step 2: Convert to fraction form
    8,985.42/13,478.13 = 2,412.27/x
  3. Step 3: Cross multiply
    8,985.42x = 13,478.13 × 2,412.27
  4. Step 4: Simplify right side
    8,985.42x = 32,512,888.66
  5. Step 5: Solve for x
    x = 32,512,888.66/8,985.42
  6. Step 6: Final answer
    x = 3,618.41

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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.