Home / 9,372.14-12,927.60-7,129.10

Finding the Fourth Proportional to 9,372.14, 12,927.60 and 7,129.10

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Solution

The fourth proportional to 9,372.14, 12,927.60 and 7,129.10 is: 9,833.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372.14 : 12,927.60 = 7,129.10 : x
  2. Step 2: Convert to fraction form
    9,372.14/12,927.60 = 7,129.10/x
  3. Step 3: Cross multiply
    9,372.14x = 12,927.60 × 7,129.10
  4. Step 4: Simplify right side
    9,372.14x = 92,162,088.52
  5. Step 5: Solve for x
    x = 92,162,088.52/9,372.14
  6. Step 6: Final answer
    x = 9,833.63

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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.