Home / 15,789.61-23,679.48-5,257.17

Finding the Fourth Proportional to 15,789.61, 23,679.48 and 5,257.17

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Solution

The fourth proportional to 15,789.61, 23,679.48 and 5,257.17 is: 7,884.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,789.61 : 23,679.48 = 5,257.17 : x
  2. Step 2: Convert to fraction form
    15,789.61/23,679.48 = 5,257.17/x
  3. Step 3: Cross multiply
    15,789.61x = 23,679.48 × 5,257.17
  4. Step 4: Simplify right side
    15,789.61x = 124,487,051.87
  5. Step 5: Solve for x
    x = 124,487,051.87/15,789.61
  6. Step 6: Final answer
    x = 7,884.11

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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.