Home / 15,639.57-23,459.36-5,258.61

Finding the Fourth Proportional to 15,639.57, 23,459.36 and 5,258.61

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Solution

The fourth proportional to 15,639.57, 23,459.36 and 5,258.61 is: 7,887.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.57 : 23,459.36 = 5,258.61 : x
  2. Step 2: Convert to fraction form
    15,639.57/23,459.36 = 5,258.61/x
  3. Step 3: Cross multiply
    15,639.57x = 23,459.36 × 5,258.61
  4. Step 4: Simplify right side
    15,639.57x = 123,363,598.80
  5. Step 5: Solve for x
    x = 123,363,598.80/15,639.57
  6. Step 6: Final answer
    x = 7,887.92

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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.