Home / 12,177.08-18,267.48-4,387.72

Finding the Fourth Proportional to 12,177.08, 18,267.48 and 4,387.72

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Solution

The fourth proportional to 12,177.08, 18,267.48 and 4,387.72 is: 6,582.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.08 : 18,267.48 = 4,387.72 : x
  2. Step 2: Convert to fraction form
    12,177.08/18,267.48 = 4,387.72/x
  3. Step 3: Cross multiply
    12,177.08x = 18,267.48 × 4,387.72
  4. Step 4: Simplify right side
    12,177.08x = 80,152,587.35
  5. Step 5: Solve for x
    x = 80,152,587.35/12,177.08
  6. Step 6: Final answer
    x = 6,582.25

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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.