Home / 10,114.79-13,957.65-5,638.73

Finding the Fourth Proportional to 10,114.79, 13,957.65 and 5,638.73

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Solution

The fourth proportional to 10,114.79, 13,957.65 and 5,638.73 is: 7,781.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,114.79 : 13,957.65 = 5,638.73 : x
  2. Step 2: Convert to fraction form
    10,114.79/13,957.65 = 5,638.73/x
  3. Step 3: Cross multiply
    10,114.79x = 13,957.65 × 5,638.73
  4. Step 4: Simplify right side
    10,114.79x = 78,703,350.00
  5. Step 5: Solve for x
    x = 78,703,350.00/10,114.79
  6. Step 6: Final answer
    x = 7,781.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.