Home / 10,514.76-15,772.12-4,278.16

Finding the Fourth Proportional to 10,514.76, 15,772.12 and 4,278.16

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Solution

The fourth proportional to 10,514.76, 15,772.12 and 4,278.16 is: 6,417.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,514.76 : 15,772.12 = 4,278.16 : x
  2. Step 2: Convert to fraction form
    10,514.76/15,772.12 = 4,278.16/x
  3. Step 3: Cross multiply
    10,514.76x = 15,772.12 × 4,278.16
  4. Step 4: Simplify right side
    10,514.76x = 67,475,652.90
  5. Step 5: Solve for x
    x = 67,475,652.90/10,514.76
  6. Step 6: Final answer
    x = 6,417.23

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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.