Home / 9,757.12-13,447.20-7,100.32

Finding the Fourth Proportional to 9,757.12, 13,447.20 and 7,100.32

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Solution

The fourth proportional to 9,757.12, 13,447.20 and 7,100.32 is: 9,785.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,757.12 : 13,447.20 = 7,100.32 : x
  2. Step 2: Convert to fraction form
    9,757.12/13,447.20 = 7,100.32/x
  3. Step 3: Cross multiply
    9,757.12x = 13,447.20 × 7,100.32
  4. Step 4: Simplify right side
    9,757.12x = 95,479,423.10
  5. Step 5: Solve for x
    x = 95,479,423.10/9,757.12
  6. Step 6: Final answer
    x = 9,785.62

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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.