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Finding the Fourth Proportional to 10,962.17, 15,079.98 and 9,611.70

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Solution

The fourth proportional to 10,962.17, 15,079.98 and 9,611.70 is: 13,222.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,962.17 : 15,079.98 = 9,611.70 : x
  2. Step 2: Convert to fraction form
    10,962.17/15,079.98 = 9,611.70/x
  3. Step 3: Cross multiply
    10,962.17x = 15,079.98 × 9,611.70
  4. Step 4: Simplify right side
    10,962.17x = 144,944,243.77
  5. Step 5: Solve for x
    x = 144,944,243.77/10,962.17
  6. Step 6: Final answer
    x = 13,222.22

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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.