Home / 18,963.40-28,444.84-8,575.16

Finding the Fourth Proportional to 18,963.40, 28,444.84 and 8,575.16

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Solution

The fourth proportional to 18,963.40, 28,444.84 and 8,575.16 is: 12,862.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,963.40 : 28,444.84 = 8,575.16 : x
  2. Step 2: Convert to fraction form
    18,963.40/28,444.84 = 8,575.16/x
  3. Step 3: Cross multiply
    18,963.40x = 28,444.84 × 8,575.16
  4. Step 4: Simplify right side
    18,963.40x = 243,919,054.17
  5. Step 5: Solve for x
    x = 243,919,054.17/18,963.40
  6. Step 6: Final answer
    x = 12,862.62

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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.