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Finding the Fourth Proportional to 18,577.12, 27,863.12 and 6,888.72

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Solution

The fourth proportional to 18,577.12, 27,863.12 and 6,888.72 is: 10,332.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,577.12 : 27,863.12 = 6,888.72 : x
  2. Step 2: Convert to fraction form
    18,577.12/27,863.12 = 6,888.72/x
  3. Step 3: Cross multiply
    18,577.12x = 27,863.12 × 6,888.72
  4. Step 4: Simplify right side
    18,577.12x = 191,941,232.01
  5. Step 5: Solve for x
    x = 191,941,232.01/18,577.12
  6. Step 6: Final answer
    x = 10,332.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.