Home / 15,789.28-23,658-5,395.36

Finding the Fourth Proportional to 15,789.28, 23,658 and 5,395.36

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Solution

The fourth proportional to 15,789.28, 23,658 and 5,395.36 is: 8,084.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,789.28 : 23,658 = 5,395.36 : x
  2. Step 2: Convert to fraction form
    15,789.28/23,658 = 5,395.36/x
  3. Step 3: Cross multiply
    15,789.28x = 23,658 × 5,395.36
  4. Step 4: Simplify right side
    15,789.28x = 127,643,426.88
  5. Step 5: Solve for x
    x = 127,643,426.88/15,789.28
  6. Step 6: Final answer
    x = 8,084.18

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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.