Home / 10,499.28-15,752.75-4,879.55

Finding the Fourth Proportional to 10,499.28, 15,752.75 and 4,879.55

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Solution

The fourth proportional to 10,499.28, 15,752.75 and 4,879.55 is: 7,321.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,499.28 : 15,752.75 = 4,879.55 : x
  2. Step 2: Convert to fraction form
    10,499.28/15,752.75 = 4,879.55/x
  3. Step 3: Cross multiply
    10,499.28x = 15,752.75 × 4,879.55
  4. Step 4: Simplify right side
    10,499.28x = 76,866,228.10
  5. Step 5: Solve for x
    x = 76,866,228.10/10,499.28
  6. Step 6: Final answer
    x = 7,321.10

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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.