Home / 8,823.62-12,177.60-5,637.08

Finding the Fourth Proportional to 8,823.62, 12,177.60 and 5,637.08

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Solution

The fourth proportional to 8,823.62, 12,177.60 and 5,637.08 is: 7,779.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,823.62 : 12,177.60 = 5,637.08 : x
  2. Step 2: Convert to fraction form
    8,823.62/12,177.60 = 5,637.08/x
  3. Step 3: Cross multiply
    8,823.62x = 12,177.60 × 5,637.08
  4. Step 4: Simplify right side
    8,823.62x = 68,646,105.41
  5. Step 5: Solve for x
    x = 68,646,105.41/8,823.62
  6. Step 6: Final answer
    x = 7,779.81

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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.