Home / 15,630.78-23,439.07-6,741.91

Finding the Fourth Proportional to 15,630.78, 23,439.07 and 6,741.91

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Solution

The fourth proportional to 15,630.78, 23,439.07 and 6,741.91 is: 10,109.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,630.78 : 23,439.07 = 6,741.91 : x
  2. Step 2: Convert to fraction form
    15,630.78/23,439.07 = 6,741.91/x
  3. Step 3: Cross multiply
    15,630.78x = 23,439.07 × 6,741.91
  4. Step 4: Simplify right side
    15,630.78x = 158,023,949.52
  5. Step 5: Solve for x
    x = 158,023,949.52/15,630.78
  6. Step 6: Final answer
    x = 10,109.79

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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.