Home / 15,721.55-23,585.22-5,192.30

Finding the Fourth Proportional to 15,721.55, 23,585.22 and 5,192.30

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Solution

The fourth proportional to 15,721.55, 23,585.22 and 5,192.30 is: 7,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,721.55 : 23,585.22 = 5,192.30 : x
  2. Step 2: Convert to fraction form
    15,721.55/23,585.22 = 5,192.30/x
  3. Step 3: Cross multiply
    15,721.55x = 23,585.22 × 5,192.30
  4. Step 4: Simplify right side
    15,721.55x = 122,461,419.88
  5. Step 5: Solve for x
    x = 122,461,419.88/15,721.55
  6. Step 6: Final answer
    x = 7,789.40

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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.