Home / 11,959.16-17,938.85-5,380.83

Finding the Fourth Proportional to 11,959.16, 17,938.85 and 5,380.83

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Solution

The fourth proportional to 11,959.16, 17,938.85 and 5,380.83 is: 8,071.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,959.16 : 17,938.85 = 5,380.83 : x
  2. Step 2: Convert to fraction form
    11,959.16/17,938.85 = 5,380.83/x
  3. Step 3: Cross multiply
    11,959.16x = 17,938.85 × 5,380.83
  4. Step 4: Simplify right side
    11,959.16x = 96,525,875.34
  5. Step 5: Solve for x
    x = 96,525,875.34/11,959.16
  6. Step 6: Final answer
    x = 8,071.30

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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.