Home / 10,981.23-15,154.13-5,945.51

Finding the Fourth Proportional to 10,981.23, 15,154.13 and 5,945.51

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Solution

The fourth proportional to 10,981.23, 15,154.13 and 5,945.51 is: 8,204.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.23 : 15,154.13 = 5,945.51 : x
  2. Step 2: Convert to fraction form
    10,981.23/15,154.13 = 5,945.51/x
  3. Step 3: Cross multiply
    10,981.23x = 15,154.13 × 5,945.51
  4. Step 4: Simplify right side
    10,981.23x = 90,098,970.55
  5. Step 5: Solve for x
    x = 90,098,970.55/10,981.23
  6. Step 6: Final answer
    x = 8,204.82

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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.