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Finding the Fourth Proportional to 8,784.03, 12,124.08 and 7,365.45

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Solution

The fourth proportional to 8,784.03, 12,124.08 and 7,365.45 is: 10,166.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.03 : 12,124.08 = 7,365.45 : x
  2. Step 2: Convert to fraction form
    8,784.03/12,124.08 = 7,365.45/x
  3. Step 3: Cross multiply
    8,784.03x = 12,124.08 × 7,365.45
  4. Step 4: Simplify right side
    8,784.03x = 89,299,305.04
  5. Step 5: Solve for x
    x = 89,299,305.04/8,784.03
  6. Step 6: Final answer
    x = 10,166.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.