Home / 8,915.76-13,345.62-6,126.12

Finding the Fourth Proportional to 8,915.76, 13,345.62 and 6,126.12

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Solution

The fourth proportional to 8,915.76, 13,345.62 and 6,126.12 is: 9,169.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.76 : 13,345.62 = 6,126.12 : x
  2. Step 2: Convert to fraction form
    8,915.76/13,345.62 = 6,126.12/x
  3. Step 3: Cross multiply
    8,915.76x = 13,345.62 × 6,126.12
  4. Step 4: Simplify right side
    8,915.76x = 81,756,869.59
  5. Step 5: Solve for x
    x = 81,756,869.59/8,915.76
  6. Step 6: Final answer
    x = 9,169.93

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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.