Home / 7,423.11-10,243.91-4,020.15

Finding the Fourth Proportional to 7,423.11, 10,243.91 and 4,020.15

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Solution

The fourth proportional to 7,423.11, 10,243.91 and 4,020.15 is: 5,547.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,423.11 : 10,243.91 = 4,020.15 : x
  2. Step 2: Convert to fraction form
    7,423.11/10,243.91 = 4,020.15/x
  3. Step 3: Cross multiply
    7,423.11x = 10,243.91 × 4,020.15
  4. Step 4: Simplify right side
    7,423.11x = 41,182,034.69
  5. Step 5: Solve for x
    x = 41,182,034.69/7,423.11
  6. Step 6: Final answer
    x = 5,547.81

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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.