Home / 8,701.30-12,988.27-7,476.58

Finding the Fourth Proportional to 8,701.30, 12,988.27 and 7,476.58

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Solution

The fourth proportional to 8,701.30, 12,988.27 and 7,476.58 is: 11,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.30 : 12,988.27 = 7,476.58 : x
  2. Step 2: Convert to fraction form
    8,701.30/12,988.27 = 7,476.58/x
  3. Step 3: Cross multiply
    8,701.30x = 12,988.27 × 7,476.58
  4. Step 4: Simplify right side
    8,701.30x = 97,107,839.72
  5. Step 5: Solve for x
    x = 97,107,839.72/8,701.30
  6. Step 6: Final answer
    x = 11,160.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.