Home / 10,535.76-15,790.68-5,338.80

Finding the Fourth Proportional to 10,535.76, 15,790.68 and 5,338.80

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Solution

The fourth proportional to 10,535.76, 15,790.68 and 5,338.80 is: 8,001.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,535.76 : 15,790.68 = 5,338.80 : x
  2. Step 2: Convert to fraction form
    10,535.76/15,790.68 = 5,338.80/x
  3. Step 3: Cross multiply
    10,535.76x = 15,790.68 × 5,338.80
  4. Step 4: Simplify right side
    10,535.76x = 84,303,282.38
  5. Step 5: Solve for x
    x = 84,303,282.38/10,535.76
  6. Step 6: Final answer
    x = 8,001.63

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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.