Home / 12,432.48-17,154.84-7,126.32

Finding the Fourth Proportional to 12,432.48, 17,154.84 and 7,126.32

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Solution

The fourth proportional to 12,432.48, 17,154.84 and 7,126.32 is: 9,833.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.48 : 17,154.84 = 7,126.32 : x
  2. Step 2: Convert to fraction form
    12,432.48/17,154.84 = 7,126.32/x
  3. Step 3: Cross multiply
    12,432.48x = 17,154.84 × 7,126.32
  4. Step 4: Simplify right side
    12,432.48x = 122,250,879.39
  5. Step 5: Solve for x
    x = 122,250,879.39/12,432.48
  6. Step 6: Final answer
    x = 9,833.19

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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.