Home / 8,786.48-12,125.88-5,061.68

Finding the Fourth Proportional to 8,786.48, 12,125.88 and 5,061.68

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Solution

The fourth proportional to 8,786.48, 12,125.88 and 5,061.68 is: 6,985.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.48 : 12,125.88 = 5,061.68 : x
  2. Step 2: Convert to fraction form
    8,786.48/12,125.88 = 5,061.68/x
  3. Step 3: Cross multiply
    8,786.48x = 12,125.88 × 5,061.68
  4. Step 4: Simplify right side
    8,786.48x = 61,377,324.28
  5. Step 5: Solve for x
    x = 61,377,324.28/8,786.48
  6. Step 6: Final answer
    x = 6,985.43

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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.