Home / 15,217.08-21,005.96-9,250.68

Finding the Fourth Proportional to 15,217.08, 21,005.96 and 9,250.68

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Solution

The fourth proportional to 15,217.08, 21,005.96 and 9,250.68 is: 12,769.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,217.08 : 21,005.96 = 9,250.68 : x
  2. Step 2: Convert to fraction form
    15,217.08/21,005.96 = 9,250.68/x
  3. Step 3: Cross multiply
    15,217.08x = 21,005.96 × 9,250.68
  4. Step 4: Simplify right side
    15,217.08x = 194,319,414.05
  5. Step 5: Solve for x
    x = 194,319,414.05/15,217.08
  6. Step 6: Final answer
    x = 12,769.82

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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.