Home / 8,487.74-11,712.85-4,710.89

Finding the Fourth Proportional to 8,487.74, 11,712.85 and 4,710.89

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Solution

The fourth proportional to 8,487.74, 11,712.85 and 4,710.89 is: 6,500.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.74 : 11,712.85 = 4,710.89 : x
  2. Step 2: Convert to fraction form
    8,487.74/11,712.85 = 4,710.89/x
  3. Step 3: Cross multiply
    8,487.74x = 11,712.85 × 4,710.89
  4. Step 4: Simplify right side
    8,487.74x = 55,177,991.94
  5. Step 5: Solve for x
    x = 55,177,991.94/8,487.74
  6. Step 6: Final answer
    x = 6,500.91

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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.