Home / 7,689.18-10,611.10-4,332.84

Finding the Fourth Proportional to 7,689.18, 10,611.10 and 4,332.84

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Solution

The fourth proportional to 7,689.18, 10,611.10 and 4,332.84 is: 5,979.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.18 : 10,611.10 = 4,332.84 : x
  2. Step 2: Convert to fraction form
    7,689.18/10,611.10 = 4,332.84/x
  3. Step 3: Cross multiply
    7,689.18x = 10,611.10 × 4,332.84
  4. Step 4: Simplify right side
    7,689.18x = 45,976,198.52
  5. Step 5: Solve for x
    x = 45,976,198.52/7,689.18
  6. Step 6: Final answer
    x = 5,979.34

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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.