Home / 15,145.48-22,721.10-4,760.20

Finding the Fourth Proportional to 15,145.48, 22,721.10 and 4,760.20

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Solution

The fourth proportional to 15,145.48, 22,721.10 and 4,760.20 is: 7,141.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.48 : 22,721.10 = 4,760.20 : x
  2. Step 2: Convert to fraction form
    15,145.48/22,721.10 = 4,760.20/x
  3. Step 3: Cross multiply
    15,145.48x = 22,721.10 × 4,760.20
  4. Step 4: Simplify right side
    15,145.48x = 108,156,980.22
  5. Step 5: Solve for x
    x = 108,156,980.22/15,145.48
  6. Step 6: Final answer
    x = 7,141.21

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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.