Home / 13,654.78-20,482.15-4,295.61

Finding the Fourth Proportional to 13,654.78, 20,482.15 and 4,295.61

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Solution

The fourth proportional to 13,654.78, 20,482.15 and 4,295.61 is: 6,443.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,654.78 : 20,482.15 = 4,295.61 : x
  2. Step 2: Convert to fraction form
    13,654.78/20,482.15 = 4,295.61/x
  3. Step 3: Cross multiply
    13,654.78x = 20,482.15 × 4,295.61
  4. Step 4: Simplify right side
    13,654.78x = 87,983,204.47
  5. Step 5: Solve for x
    x = 87,983,204.47/13,654.78
  6. Step 6: Final answer
    x = 6,443.40

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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.