Home / 15,789.18-23,686.20-5,398.50

Finding the Fourth Proportional to 15,789.18, 23,686.20 and 5,398.50

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Solution

The fourth proportional to 15,789.18, 23,686.20 and 5,398.50 is: 8,098.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,789.18 : 23,686.20 = 5,398.50 : x
  2. Step 2: Convert to fraction form
    15,789.18/23,686.20 = 5,398.50/x
  3. Step 3: Cross multiply
    15,789.18x = 23,686.20 × 5,398.50
  4. Step 4: Simplify right side
    15,789.18x = 127,869,950.70
  5. Step 5: Solve for x
    x = 127,869,950.70/15,789.18
  6. Step 6: Final answer
    x = 8,098.58

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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.