Home / 9,125.28-12,581.48-7,615.02

Finding the Fourth Proportional to 9,125.28, 12,581.48 and 7,615.02

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Solution

The fourth proportional to 9,125.28, 12,581.48 and 7,615.02 is: 10,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.28 : 12,581.48 = 7,615.02 : x
  2. Step 2: Convert to fraction form
    9,125.28/12,581.48 = 7,615.02/x
  3. Step 3: Cross multiply
    9,125.28x = 12,581.48 × 7,615.02
  4. Step 4: Simplify right side
    9,125.28x = 95,808,128.35
  5. Step 5: Solve for x
    x = 95,808,128.35/9,125.28
  6. Step 6: Final answer
    x = 10,499.20

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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.