Home / 15,532.89-21,436.29-11,697.66

Finding the Fourth Proportional to 15,532.89, 21,436.29 and 11,697.66

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Solution

The fourth proportional to 15,532.89, 21,436.29 and 11,697.66 is: 16,143.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,532.89 : 21,436.29 = 11,697.66 : x
  2. Step 2: Convert to fraction form
    15,532.89/21,436.29 = 11,697.66/x
  3. Step 3: Cross multiply
    15,532.89x = 21,436.29 × 11,697.66
  4. Step 4: Simplify right side
    15,532.89x = 250,754,432.08
  5. Step 5: Solve for x
    x = 250,754,432.08/15,532.89
  6. Step 6: Final answer
    x = 16,143.45

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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.