Home / 15,543.70-23,320.95-6,781.30

Finding the Fourth Proportional to 15,543.70, 23,320.95 and 6,781.30

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Solution

The fourth proportional to 15,543.70, 23,320.95 and 6,781.30 is: 10,174.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,543.70 : 23,320.95 = 6,781.30 : x
  2. Step 2: Convert to fraction form
    15,543.70/23,320.95 = 6,781.30/x
  3. Step 3: Cross multiply
    15,543.70x = 23,320.95 × 6,781.30
  4. Step 4: Simplify right side
    15,543.70x = 158,146,358.24
  5. Step 5: Solve for x
    x = 158,146,358.24/15,543.70
  6. Step 6: Final answer
    x = 10,174.31

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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.