Home / 7,689.77-11,534.69-2,143.11

Finding the Fourth Proportional to 7,689.77, 11,534.69 and 2,143.11

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Solution

The fourth proportional to 7,689.77, 11,534.69 and 2,143.11 is: 3,214.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.77 : 11,534.69 = 2,143.11 : x
  2. Step 2: Convert to fraction form
    7,689.77/11,534.69 = 2,143.11/x
  3. Step 3: Cross multiply
    7,689.77x = 11,534.69 × 2,143.11
  4. Step 4: Simplify right side
    7,689.77x = 24,720,098.77
  5. Step 5: Solve for x
    x = 24,720,098.77/7,689.77
  6. Step 6: Final answer
    x = 3,214.68

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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.