Home / 10,031.76-15,042.60-4,186.80

Finding the Fourth Proportional to 10,031.76, 15,042.60 and 4,186.80

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Solution

The fourth proportional to 10,031.76, 15,042.60 and 4,186.80 is: 6,278.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,031.76 : 15,042.60 = 4,186.80 : x
  2. Step 2: Convert to fraction form
    10,031.76/15,042.60 = 4,186.80/x
  3. Step 3: Cross multiply
    10,031.76x = 15,042.60 × 4,186.80
  4. Step 4: Simplify right side
    10,031.76x = 62,980,357.68
  5. Step 5: Solve for x
    x = 62,980,357.68/10,031.76
  6. Step 6: Final answer
    x = 6,278.10

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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.