Home / 7,877.06-11,792.55-4,778.18

Finding the Fourth Proportional to 7,877.06, 11,792.55 and 4,778.18

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Solution

The fourth proportional to 7,877.06, 11,792.55 and 4,778.18 is: 7,153.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.06 : 11,792.55 = 4,778.18 : x
  2. Step 2: Convert to fraction form
    7,877.06/11,792.55 = 4,778.18/x
  3. Step 3: Cross multiply
    7,877.06x = 11,792.55 × 4,778.18
  4. Step 4: Simplify right side
    7,877.06x = 56,346,926.56
  5. Step 5: Solve for x
    x = 56,346,926.56/7,877.06
  6. Step 6: Final answer
    x = 7,153.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.