Home / 10,515.38-15,773.00-3,119.23

Finding the Fourth Proportional to 10,515.38, 15,773.00 and 3,119.23

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Solution

The fourth proportional to 10,515.38, 15,773.00 and 3,119.23 is: 4,678.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.38 : 15,773.00 = 3,119.23 : x
  2. Step 2: Convert to fraction form
    10,515.38/15,773.00 = 3,119.23/x
  3. Step 3: Cross multiply
    10,515.38x = 15,773.00 × 3,119.23
  4. Step 4: Simplify right side
    10,515.38x = 49,199,559.76
  5. Step 5: Solve for x
    x = 49,199,559.76/10,515.38
  6. Step 6: Final answer
    x = 4,678.82

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Double scale
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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.