Home / 11,920.76-17,875.32-3,599.20

Finding the Fourth Proportional to 11,920.76, 17,875.32 and 3,599.20

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Solution

The fourth proportional to 11,920.76, 17,875.32 and 3,599.20 is: 5,397.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,920.76 : 17,875.32 = 3,599.20 : x
  2. Step 2: Convert to fraction form
    11,920.76/17,875.32 = 3,599.20/x
  3. Step 3: Cross multiply
    11,920.76x = 17,875.32 × 3,599.20
  4. Step 4: Simplify right side
    11,920.76x = 64,336,851.74
  5. Step 5: Solve for x
    x = 64,336,851.74/11,920.76
  6. Step 6: Final answer
    x = 5,397.04

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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.