Home / 12,180.24-18,248.76-7,235.28

Finding the Fourth Proportional to 12,180.24, 18,248.76 and 7,235.28

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Solution

The fourth proportional to 12,180.24, 18,248.76 and 7,235.28 is: 10,840.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.24 : 18,248.76 = 7,235.28 : x
  2. Step 2: Convert to fraction form
    12,180.24/18,248.76 = 7,235.28/x
  3. Step 3: Cross multiply
    12,180.24x = 18,248.76 × 7,235.28
  4. Step 4: Simplify right side
    12,180.24x = 132,034,888.25
  5. Step 5: Solve for x
    x = 132,034,888.25/12,180.24
  6. Step 6: Final answer
    x = 10,840.09

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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.