Home / 12,040.55-16,616.20-7,260.47

Finding the Fourth Proportional to 12,040.55, 16,616.20 and 7,260.47

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Solution

The fourth proportional to 12,040.55, 16,616.20 and 7,260.47 is: 10,019.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,040.55 : 16,616.20 = 7,260.47 : x
  2. Step 2: Convert to fraction form
    12,040.55/16,616.20 = 7,260.47/x
  3. Step 3: Cross multiply
    12,040.55x = 16,616.20 × 7,260.47
  4. Step 4: Simplify right side
    12,040.55x = 120,641,421.61
  5. Step 5: Solve for x
    x = 120,641,421.61/12,040.55
  6. Step 6: Final answer
    x = 10,019.59

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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.