Home / 8,557.89-11,809.75-4,781.11

Finding the Fourth Proportional to 8,557.89, 11,809.75 and 4,781.11

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Solution

The fourth proportional to 8,557.89, 11,809.75 and 4,781.11 is: 6,597.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.89 : 11,809.75 = 4,781.11 : x
  2. Step 2: Convert to fraction form
    8,557.89/11,809.75 = 4,781.11/x
  3. Step 3: Cross multiply
    8,557.89x = 11,809.75 × 4,781.11
  4. Step 4: Simplify right side
    8,557.89x = 56,463,654.77
  5. Step 5: Solve for x
    x = 56,463,654.77/8,557.89
  6. Step 6: Final answer
    x = 6,597.85

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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.