Home / 15,071.28-22,620.72-7,681.04

Finding the Fourth Proportional to 15,071.28, 22,620.72 and 7,681.04

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Solution

The fourth proportional to 15,071.28, 22,620.72 and 7,681.04 is: 11,528.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,071.28 : 22,620.72 = 7,681.04 : x
  2. Step 2: Convert to fraction form
    15,071.28/22,620.72 = 7,681.04/x
  3. Step 3: Cross multiply
    15,071.28x = 22,620.72 × 7,681.04
  4. Step 4: Simplify right side
    15,071.28x = 173,750,655.15
  5. Step 5: Solve for x
    x = 173,750,655.15/15,071.28
  6. Step 6: Final answer
    x = 11,528.59

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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.