Home / 8,979.39-13,455.45-4,292.94

Finding the Fourth Proportional to 8,979.39, 13,455.45 and 4,292.94

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Solution

The fourth proportional to 8,979.39, 13,455.45 and 4,292.94 is: 6,432.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.39 : 13,455.45 = 4,292.94 : x
  2. Step 2: Convert to fraction form
    8,979.39/13,455.45 = 4,292.94/x
  3. Step 3: Cross multiply
    8,979.39x = 13,455.45 × 4,292.94
  4. Step 4: Simplify right side
    8,979.39x = 57,763,439.52
  5. Step 5: Solve for x
    x = 57,763,439.52/8,979.39
  6. Step 6: Final answer
    x = 6,432.89

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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.