Home / 10,981.50-15,154.50-6,265.68

Finding the Fourth Proportional to 10,981.50, 15,154.50 and 6,265.68

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Solution

The fourth proportional to 10,981.50, 15,154.50 and 6,265.68 is: 8,646.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.50 : 15,154.50 = 6,265.68 : x
  2. Step 2: Convert to fraction form
    10,981.50/15,154.50 = 6,265.68/x
  3. Step 3: Cross multiply
    10,981.50x = 15,154.50 × 6,265.68
  4. Step 4: Simplify right side
    10,981.50x = 94,953,247.56
  5. Step 5: Solve for x
    x = 94,953,247.56/10,981.50
  6. Step 6: Final answer
    x = 8,646.66

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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.