Home / 10,013.57-13,806.17-6,422.19

Finding the Fourth Proportional to 10,013.57, 13,806.17 and 6,422.19

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Solution

The fourth proportional to 10,013.57, 13,806.17 and 6,422.19 is: 8,854.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,013.57 : 13,806.17 = 6,422.19 : x
  2. Step 2: Convert to fraction form
    10,013.57/13,806.17 = 6,422.19/x
  3. Step 3: Cross multiply
    10,013.57x = 13,806.17 × 6,422.19
  4. Step 4: Simplify right side
    10,013.57x = 88,665,894.57
  5. Step 5: Solve for x
    x = 88,665,894.57/10,013.57
  6. Step 6: Final answer
    x = 8,854.57

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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.