Home / 11,938.32-17,904.24-4,142.88

Finding the Fourth Proportional to 11,938.32, 17,904.24 and 4,142.88

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Solution

The fourth proportional to 11,938.32, 17,904.24 and 4,142.88 is: 6,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.32 : 17,904.24 = 4,142.88 : x
  2. Step 2: Convert to fraction form
    11,938.32/17,904.24 = 4,142.88/x
  3. Step 3: Cross multiply
    11,938.32x = 17,904.24 × 4,142.88
  4. Step 4: Simplify right side
    11,938.32x = 74,175,117.81
  5. Step 5: Solve for x
    x = 74,175,117.81/11,938.32
  6. Step 6: Final answer
    x = 6,213.20

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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.