Home / 10,171.85-15,258.71-3,151.91

Finding the Fourth Proportional to 10,171.85, 15,258.71 and 3,151.91

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Solution

The fourth proportional to 10,171.85, 15,258.71 and 3,151.91 is: 4,728.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,171.85 : 15,258.71 = 3,151.91 : x
  2. Step 2: Convert to fraction form
    10,171.85/15,258.71 = 3,151.91/x
  3. Step 3: Cross multiply
    10,171.85x = 15,258.71 × 3,151.91
  4. Step 4: Simplify right side
    10,171.85x = 48,094,126.66
  5. Step 5: Solve for x
    x = 48,094,126.66/10,171.85
  6. Step 6: Final answer
    x = 4,728.16

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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.