Home / 10,981.74-15,155.10-6,265.92

Finding the Fourth Proportional to 10,981.74, 15,155.10 and 6,265.92

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Solution

The fourth proportional to 10,981.74, 15,155.10 and 6,265.92 is: 8,647.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.74 : 15,155.10 = 6,265.92 : x
  2. Step 2: Convert to fraction form
    10,981.74/15,155.10 = 6,265.92/x
  3. Step 3: Cross multiply
    10,981.74x = 15,155.10 × 6,265.92
  4. Step 4: Simplify right side
    10,981.74x = 94,960,644.19
  5. Step 5: Solve for x
    x = 94,960,644.19/10,981.74
  6. Step 6: Final answer
    x = 8,647.14

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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.