Home / 10,105.12-15,074.80-9,398.08

Finding the Fourth Proportional to 10,105.12, 15,074.80 and 9,398.08

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Solution

The fourth proportional to 10,105.12, 15,074.80 and 9,398.08 is: 14,020.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,105.12 : 15,074.80 = 9,398.08 : x
  2. Step 2: Convert to fraction form
    10,105.12/15,074.80 = 9,398.08/x
  3. Step 3: Cross multiply
    10,105.12x = 15,074.80 × 9,398.08
  4. Step 4: Simplify right side
    10,105.12x = 141,674,176.38
  5. Step 5: Solve for x
    x = 141,674,176.38/10,105.12
  6. Step 6: Final answer
    x = 14,020.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.