Home / 14,318.28-19,758.60-8,654.40

Finding the Fourth Proportional to 14,318.28, 19,758.60 and 8,654.40

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Solution

The fourth proportional to 14,318.28, 19,758.60 and 8,654.40 is: 11,942.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,318.28 : 19,758.60 = 8,654.40 : x
  2. Step 2: Convert to fraction form
    14,318.28/19,758.60 = 8,654.40/x
  3. Step 3: Cross multiply
    14,318.28x = 19,758.60 × 8,654.40
  4. Step 4: Simplify right side
    14,318.28x = 170,998,827.84
  5. Step 5: Solve for x
    x = 170,998,827.84/14,318.28
  6. Step 6: Final answer
    x = 11,942.69

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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.