Home / 8,979.18-12,397.26-5,840.70

Finding the Fourth Proportional to 8,979.18, 12,397.26 and 5,840.70

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Solution

The fourth proportional to 8,979.18, 12,397.26 and 5,840.70 is: 8,064.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.18 : 12,397.26 = 5,840.70 : x
  2. Step 2: Convert to fraction form
    8,979.18/12,397.26 = 5,840.70/x
  3. Step 3: Cross multiply
    8,979.18x = 12,397.26 × 5,840.70
  4. Step 4: Simplify right side
    8,979.18x = 72,408,676.48
  5. Step 5: Solve for x
    x = 72,408,676.48/8,979.18
  6. Step 6: Final answer
    x = 8,064.06

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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.