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Finding the Fourth Proportional to 15,154.60, 22,672.50 and 9,970.60

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Solution

The fourth proportional to 15,154.60, 22,672.50 and 9,970.60 is: 14,916.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,154.60 : 22,672.50 = 9,970.60 : x
  2. Step 2: Convert to fraction form
    15,154.60/22,672.50 = 9,970.60/x
  3. Step 3: Cross multiply
    15,154.60x = 22,672.50 × 9,970.60
  4. Step 4: Simplify right side
    15,154.60x = 226,058,428.50
  5. Step 5: Solve for x
    x = 226,058,428.50/15,154.60
  6. Step 6: Final answer
    x = 14,916.82

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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.