Home / 9,020.20-12,447.40-5,040.52

Finding the Fourth Proportional to 9,020.20, 12,447.40 and 5,040.52

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Solution

The fourth proportional to 9,020.20, 12,447.40 and 5,040.52 is: 6,955.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,020.20 : 12,447.40 = 5,040.52 : x
  2. Step 2: Convert to fraction form
    9,020.20/12,447.40 = 5,040.52/x
  3. Step 3: Cross multiply
    9,020.20x = 12,447.40 × 5,040.52
  4. Step 4: Simplify right side
    9,020.20x = 62,741,368.65
  5. Step 5: Solve for x
    x = 62,741,368.65/9,020.20
  6. Step 6: Final answer
    x = 6,955.65

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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.