Home / 8,689.20-11,990.94-4,710.24

Finding the Fourth Proportional to 8,689.20, 11,990.94 and 4,710.24

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Solution

The fourth proportional to 8,689.20, 11,990.94 and 4,710.24 is: 6,500.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.20 : 11,990.94 = 4,710.24 : x
  2. Step 2: Convert to fraction form
    8,689.20/11,990.94 = 4,710.24/x
  3. Step 3: Cross multiply
    8,689.20x = 11,990.94 × 4,710.24
  4. Step 4: Simplify right side
    8,689.20x = 56,480,205.23
  5. Step 5: Solve for x
    x = 56,480,205.23/8,689.20
  6. Step 6: Final answer
    x = 6,500.05

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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.