Home / 8,822.08-12,168.10-5,590.79

Finding the Fourth Proportional to 8,822.08, 12,168.10 and 5,590.79

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Solution

The fourth proportional to 8,822.08, 12,168.10 and 5,590.79 is: 7,711.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,822.08 : 12,168.10 = 5,590.79 : x
  2. Step 2: Convert to fraction form
    8,822.08/12,168.10 = 5,590.79/x
  3. Step 3: Cross multiply
    8,822.08x = 12,168.10 × 5,590.79
  4. Step 4: Simplify right side
    8,822.08x = 68,029,283.58
  5. Step 5: Solve for x
    x = 68,029,283.58/8,822.08
  6. Step 6: Final answer
    x = 7,711.25

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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.