Home / 13,385.46-20,070.08-5,988.54

Finding the Fourth Proportional to 13,385.46, 20,070.08 and 5,988.54

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Solution

The fourth proportional to 13,385.46, 20,070.08 and 5,988.54 is: 8,979.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.46 : 20,070.08 = 5,988.54 : x
  2. Step 2: Convert to fraction form
    13,385.46/20,070.08 = 5,988.54/x
  3. Step 3: Cross multiply
    13,385.46x = 20,070.08 × 5,988.54
  4. Step 4: Simplify right side
    13,385.46x = 120,190,476.88
  5. Step 5: Solve for x
    x = 120,190,476.88/13,385.46
  6. Step 6: Final answer
    x = 8,979.18

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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.