Home / 15,454.56-21,328.62-12,932.22

Finding the Fourth Proportional to 15,454.56, 21,328.62 and 12,932.22

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Solution

The fourth proportional to 15,454.56, 21,328.62 and 12,932.22 is: 17,847.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.56 : 21,328.62 = 12,932.22 : x
  2. Step 2: Convert to fraction form
    15,454.56/21,328.62 = 12,932.22/x
  3. Step 3: Cross multiply
    15,454.56x = 21,328.62 × 12,932.22
  4. Step 4: Simplify right side
    15,454.56x = 275,826,406.14
  5. Step 5: Solve for x
    x = 275,826,406.14/15,454.56
  6. Step 6: Final answer
    x = 17,847.57

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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.