Home / 15,338.73-21,167.23-8,532.69

Finding the Fourth Proportional to 15,338.73, 21,167.23 and 8,532.69

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Solution

The fourth proportional to 15,338.73, 21,167.23 and 8,532.69 is: 11,774.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338.73 : 21,167.23 = 8,532.69 : x
  2. Step 2: Convert to fraction form
    15,338.73/21,167.23 = 8,532.69/x
  3. Step 3: Cross multiply
    15,338.73x = 21,167.23 × 8,532.69
  4. Step 4: Simplify right side
    15,338.73x = 180,613,411.75
  5. Step 5: Solve for x
    x = 180,613,411.75/15,338.73
  6. Step 6: Final answer
    x = 11,774.99

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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.