Home / 7,851.70-11,767.65-4,155.58

Finding the Fourth Proportional to 7,851.70, 11,767.65 and 4,155.58

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Solution

The fourth proportional to 7,851.70, 11,767.65 and 4,155.58 is: 6,228.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.70 : 11,767.65 = 4,155.58 : x
  2. Step 2: Convert to fraction form
    7,851.70/11,767.65 = 4,155.58/x
  3. Step 3: Cross multiply
    7,851.70x = 11,767.65 × 4,155.58
  4. Step 4: Simplify right side
    7,851.70x = 48,901,410.99
  5. Step 5: Solve for x
    x = 48,901,410.99/7,851.70
  6. Step 6: Final answer
    x = 6,228.13

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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.