Home / 12,437.66-18,651.90-5,040.20

Finding the Fourth Proportional to 12,437.66, 18,651.90 and 5,040.20

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Solution

The fourth proportional to 12,437.66, 18,651.90 and 5,040.20 is: 7,558.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.66 : 18,651.90 = 5,040.20 : x
  2. Step 2: Convert to fraction form
    12,437.66/18,651.90 = 5,040.20/x
  3. Step 3: Cross multiply
    12,437.66x = 18,651.90 × 5,040.20
  4. Step 4: Simplify right side
    12,437.66x = 94,009,306.38
  5. Step 5: Solve for x
    x = 94,009,306.38/12,437.66
  6. Step 6: Final answer
    x = 7,558.44

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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.