Home / 15,154.94-20,908.02-9,487.34

Finding the Fourth Proportional to 15,154.94, 20,908.02 and 9,487.34

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Solution

The fourth proportional to 15,154.94, 20,908.02 and 9,487.34 is: 13,088.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,154.94 : 20,908.02 = 9,487.34 : x
  2. Step 2: Convert to fraction form
    15,154.94/20,908.02 = 9,487.34/x
  3. Step 3: Cross multiply
    15,154.94x = 20,908.02 × 9,487.34
  4. Step 4: Simplify right side
    15,154.94x = 198,361,494.47
  5. Step 5: Solve for x
    x = 198,361,494.47/15,154.94
  6. Step 6: Final answer
    x = 13,088.90

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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.