Home / 8,998.60-12,418.30-5,020.48

Finding the Fourth Proportional to 8,998.60, 12,418.30 and 5,020.48

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Solution

The fourth proportional to 8,998.60, 12,418.30 and 5,020.48 is: 6,928.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,998.60 : 12,418.30 = 5,020.48 : x
  2. Step 2: Convert to fraction form
    8,998.60/12,418.30 = 5,020.48/x
  3. Step 3: Cross multiply
    8,998.60x = 12,418.30 × 5,020.48
  4. Step 4: Simplify right side
    8,998.60x = 62,345,826.78
  5. Step 5: Solve for x
    x = 62,345,826.78/8,998.60
  6. Step 6: Final answer
    x = 6,928.40

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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.