Home / 7,575.12-11,354.28-5,720.22

Finding the Fourth Proportional to 7,575.12, 11,354.28 and 5,720.22

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Solution

The fourth proportional to 7,575.12, 11,354.28 and 5,720.22 is: 8,573.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,575.12 : 11,354.28 = 5,720.22 : x
  2. Step 2: Convert to fraction form
    7,575.12/11,354.28 = 5,720.22/x
  3. Step 3: Cross multiply
    7,575.12x = 11,354.28 × 5,720.22
  4. Step 4: Simplify right side
    7,575.12x = 64,948,979.54
  5. Step 5: Solve for x
    x = 64,948,979.54/7,575.12
  6. Step 6: Final answer
    x = 8,573.99

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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.