Home / 10,507.78-15,761.63-3,488.32

Finding the Fourth Proportional to 10,507.78, 15,761.63 and 3,488.32

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Solution

The fourth proportional to 10,507.78, 15,761.63 and 3,488.32 is: 5,232.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,507.78 : 15,761.63 = 3,488.32 : x
  2. Step 2: Convert to fraction form
    10,507.78/15,761.63 = 3,488.32/x
  3. Step 3: Cross multiply
    10,507.78x = 15,761.63 × 3,488.32
  4. Step 4: Simplify right side
    10,507.78x = 54,981,657.25
  5. Step 5: Solve for x
    x = 54,981,657.25/10,507.78
  6. Step 6: Final answer
    x = 5,232.47

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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.