Home / 10,136.58-13,972.59-9,321.92

Finding the Fourth Proportional to 10,136.58, 13,972.59 and 9,321.92

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Solution

The fourth proportional to 10,136.58, 13,972.59 and 9,321.92 is: 12,849.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,136.58 : 13,972.59 = 9,321.92 : x
  2. Step 2: Convert to fraction form
    10,136.58/13,972.59 = 9,321.92/x
  3. Step 3: Cross multiply
    10,136.58x = 13,972.59 × 9,321.92
  4. Step 4: Simplify right side
    10,136.58x = 130,251,296.31
  5. Step 5: Solve for x
    x = 130,251,296.31/10,136.58
  6. Step 6: Final answer
    x = 12,849.63

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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.