Home / 13,543.73-20,318.91-4,659.20

Finding the Fourth Proportional to 13,543.73, 20,318.91 and 4,659.20

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Solution

The fourth proportional to 13,543.73, 20,318.91 and 4,659.20 is: 6,989.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.73 : 20,318.91 = 4,659.20 : x
  2. Step 2: Convert to fraction form
    13,543.73/20,318.91 = 4,659.20/x
  3. Step 3: Cross multiply
    13,543.73x = 20,318.91 × 4,659.20
  4. Step 4: Simplify right side
    13,543.73x = 94,669,865.47
  5. Step 5: Solve for x
    x = 94,669,865.47/13,543.73
  6. Step 6: Final answer
    x = 6,989.94

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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.