Home / 18,320.79-27,468.69-8,454.58

Finding the Fourth Proportional to 18,320.79, 27,468.69 and 8,454.58

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Solution

The fourth proportional to 18,320.79, 27,468.69 and 8,454.58 is: 12,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,320.79 : 27,468.69 = 8,454.58 : x
  2. Step 2: Convert to fraction form
    18,320.79/27,468.69 = 8,454.58/x
  3. Step 3: Cross multiply
    18,320.79x = 27,468.69 × 8,454.58
  4. Step 4: Simplify right side
    18,320.79x = 232,236,237.10
  5. Step 5: Solve for x
    x = 232,236,237.10/18,320.79
  6. Step 6: Final answer
    x = 12,676.10

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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.