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Finding the Fourth Proportional to 11,282.88, 15,555.44 and 9,258.88

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Solution

The fourth proportional to 11,282.88, 15,555.44 and 9,258.88 is: 12,765.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,282.88 : 15,555.44 = 9,258.88 : x
  2. Step 2: Convert to fraction form
    11,282.88/15,555.44 = 9,258.88/x
  3. Step 3: Cross multiply
    11,282.88x = 15,555.44 × 9,258.88
  4. Step 4: Simplify right side
    11,282.88x = 144,025,952.31
  5. Step 5: Solve for x
    x = 144,025,952.31/11,282.88
  6. Step 6: Final answer
    x = 12,765.00

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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.