Home / 10,412.55-15,607.89-7,489.26

Finding the Fourth Proportional to 10,412.55, 15,607.89 and 7,489.26

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Solution

The fourth proportional to 10,412.55, 15,607.89 and 7,489.26 is: 11,226.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,412.55 : 15,607.89 = 7,489.26 : x
  2. Step 2: Convert to fraction form
    10,412.55/15,607.89 = 7,489.26/x
  3. Step 3: Cross multiply
    10,412.55x = 15,607.89 × 7,489.26
  4. Step 4: Simplify right side
    10,412.55x = 116,891,546.26
  5. Step 5: Solve for x
    x = 116,891,546.26/10,412.55
  6. Step 6: Final answer
    x = 11,226.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.