Home / 15,227.64-21,016.52-9,261.16

Finding the Fourth Proportional to 15,227.64, 21,016.52 and 9,261.16

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Solution

The fourth proportional to 15,227.64, 21,016.52 and 9,261.16 is: 12,781.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,227.64 : 21,016.52 = 9,261.16 : x
  2. Step 2: Convert to fraction form
    15,227.64/21,016.52 = 9,261.16/x
  3. Step 3: Cross multiply
    15,227.64x = 21,016.52 × 9,261.16
  4. Step 4: Simplify right side
    15,227.64x = 194,637,354.36
  5. Step 5: Solve for x
    x = 194,637,354.36/15,227.64
  6. Step 6: Final answer
    x = 12,781.85

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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.