Home / 10,957.11-15,121.40-6,242.91

Finding the Fourth Proportional to 10,957.11, 15,121.40 and 6,242.91

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Solution

The fourth proportional to 10,957.11, 15,121.40 and 6,242.91 is: 8,615.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.11 : 15,121.40 = 6,242.91 : x
  2. Step 2: Convert to fraction form
    10,957.11/15,121.40 = 6,242.91/x
  3. Step 3: Cross multiply
    10,957.11x = 15,121.40 × 6,242.91
  4. Step 4: Simplify right side
    10,957.11x = 94,401,508.06
  5. Step 5: Solve for x
    x = 94,401,508.06/10,957.11
  6. Step 6: Final answer
    x = 8,615.55

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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.