Home / 15,512.64-23,174.56-9,921.28

Finding the Fourth Proportional to 15,512.64, 23,174.56 and 9,921.28

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Solution

The fourth proportional to 15,512.64, 23,174.56 and 9,921.28 is: 14,821.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.64 : 23,174.56 = 9,921.28 : x
  2. Step 2: Convert to fraction form
    15,512.64/23,174.56 = 9,921.28/x
  3. Step 3: Cross multiply
    15,512.64x = 23,174.56 × 9,921.28
  4. Step 4: Simplify right side
    15,512.64x = 229,921,298.64
  5. Step 5: Solve for x
    x = 229,921,298.64/15,512.64
  6. Step 6: Final answer
    x = 14,821.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.