Home / 10,638.15-15,957.83-3,242.85

Finding the Fourth Proportional to 10,638.15, 15,957.83 and 3,242.85

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Solution

The fourth proportional to 10,638.15, 15,957.83 and 3,242.85 is: 4,864.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.15 : 15,957.83 = 3,242.85 : x
  2. Step 2: Convert to fraction form
    10,638.15/15,957.83 = 3,242.85/x
  3. Step 3: Cross multiply
    10,638.15x = 15,957.83 × 3,242.85
  4. Step 4: Simplify right side
    10,638.15x = 51,748,849.02
  5. Step 5: Solve for x
    x = 51,748,849.02/10,638.15
  6. Step 6: Final answer
    x = 4,864.46

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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.