Home / 13,543.52-20,312.79-6,146.20

Finding the Fourth Proportional to 13,543.52, 20,312.79 and 6,146.20

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Solution

The fourth proportional to 13,543.52, 20,312.79 and 6,146.20 is: 9,218.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.52 : 20,312.79 = 6,146.20 : x
  2. Step 2: Convert to fraction form
    13,543.52/20,312.79 = 6,146.20/x
  3. Step 3: Cross multiply
    13,543.52x = 20,312.79 × 6,146.20
  4. Step 4: Simplify right side
    13,543.52x = 124,846,469.90
  5. Step 5: Solve for x
    x = 124,846,469.90/13,543.52
  6. Step 6: Final answer
    x = 9,218.17

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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.