Home / 7,807.19-11,712.35-2,876.85

Finding the Fourth Proportional to 7,807.19, 11,712.35 and 2,876.85

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Solution

The fourth proportional to 7,807.19, 11,712.35 and 2,876.85 is: 4,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,807.19 : 11,712.35 = 2,876.85 : x
  2. Step 2: Convert to fraction form
    7,807.19/11,712.35 = 2,876.85/x
  3. Step 3: Cross multiply
    7,807.19x = 11,712.35 × 2,876.85
  4. Step 4: Simplify right side
    7,807.19x = 33,694,659.71
  5. Step 5: Solve for x
    x = 33,694,659.71/7,807.19
  6. Step 6: Final answer
    x = 4,315.85

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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.