Home / 10,535.22-15,805.11-3,140.28

Finding the Fourth Proportional to 10,535.22, 15,805.11 and 3,140.28

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Solution

The fourth proportional to 10,535.22, 15,805.11 and 3,140.28 is: 4,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,535.22 : 15,805.11 = 3,140.28 : x
  2. Step 2: Convert to fraction form
    10,535.22/15,805.11 = 3,140.28/x
  3. Step 3: Cross multiply
    10,535.22x = 15,805.11 × 3,140.28
  4. Step 4: Simplify right side
    10,535.22x = 49,632,470.83
  5. Step 5: Solve for x
    x = 49,632,470.83/10,535.22
  6. Step 6: Final answer
    x = 4,711.10

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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.