Home / 8,689.49-11,991.58-4,710.61

Finding the Fourth Proportional to 8,689.49, 11,991.58 and 4,710.61

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Solution

The fourth proportional to 8,689.49, 11,991.58 and 4,710.61 is: 6,500.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.49 : 11,991.58 = 4,710.61 : x
  2. Step 2: Convert to fraction form
    8,689.49/11,991.58 = 4,710.61/x
  3. Step 3: Cross multiply
    8,689.49x = 11,991.58 × 4,710.61
  4. Step 4: Simplify right side
    8,689.49x = 56,487,658.37
  5. Step 5: Solve for x
    x = 56,487,658.37/8,689.49
  6. Step 6: Final answer
    x = 6,500.69

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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.