Home / 15,508.26-21,406.41-9,134.46

Finding the Fourth Proportional to 15,508.26, 21,406.41 and 9,134.46

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Solution

The fourth proportional to 15,508.26, 21,406.41 and 9,134.46 is: 12,608.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,508.26 : 21,406.41 = 9,134.46 : x
  2. Step 2: Convert to fraction form
    15,508.26/21,406.41 = 9,134.46/x
  3. Step 3: Cross multiply
    15,508.26x = 21,406.41 × 9,134.46
  4. Step 4: Simplify right side
    15,508.26x = 195,535,995.89
  5. Step 5: Solve for x
    x = 195,535,995.89/15,508.26
  6. Step 6: Final answer
    x = 12,608.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.