Home / 12,400.08-18,608.40-6,857.52

Finding the Fourth Proportional to 12,400.08, 18,608.40 and 6,857.52

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Solution

The fourth proportional to 12,400.08, 18,608.40 and 6,857.52 is: 10,290.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.08 : 18,608.40 = 6,857.52 : x
  2. Step 2: Convert to fraction form
    12,400.08/18,608.40 = 6,857.52/x
  3. Step 3: Cross multiply
    12,400.08x = 18,608.40 × 6,857.52
  4. Step 4: Simplify right side
    12,400.08x = 127,607,475.17
  5. Step 5: Solve for x
    x = 127,607,475.17/12,400.08
  6. Step 6: Final answer
    x = 10,290.86

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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.