Home / 10,561.38-15,828.08-5,620.38

Finding the Fourth Proportional to 10,561.38, 15,828.08 and 5,620.38

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Solution

The fourth proportional to 10,561.38, 15,828.08 and 5,620.38 is: 8,423.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,561.38 : 15,828.08 = 5,620.38 : x
  2. Step 2: Convert to fraction form
    10,561.38/15,828.08 = 5,620.38/x
  3. Step 3: Cross multiply
    10,561.38x = 15,828.08 × 5,620.38
  4. Step 4: Simplify right side
    10,561.38x = 88,959,796.17
  5. Step 5: Solve for x
    x = 88,959,796.17/10,561.38
  6. Step 6: Final answer
    x = 8,423.12

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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.