Home / 15,639.10-23,456.01-4,391.86

Finding the Fourth Proportional to 15,639.10, 23,456.01 and 4,391.86

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Solution

The fourth proportional to 15,639.10, 23,456.01 and 4,391.86 is: 6,587.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.10 : 23,456.01 = 4,391.86 : x
  2. Step 2: Convert to fraction form
    15,639.10/23,456.01 = 4,391.86/x
  3. Step 3: Cross multiply
    15,639.10x = 23,456.01 × 4,391.86
  4. Step 4: Simplify right side
    15,639.10x = 103,015,512.08
  5. Step 5: Solve for x
    x = 103,015,512.08/15,639.10
  6. Step 6: Final answer
    x = 6,587.05

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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.