Home / 7,869.84-10,867.36-5,876.96

Finding the Fourth Proportional to 7,869.84, 10,867.36 and 5,876.96

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Solution

The fourth proportional to 7,869.84, 10,867.36 and 5,876.96 is: 8,115.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.84 : 10,867.36 = 5,876.96 : x
  2. Step 2: Convert to fraction form
    7,869.84/10,867.36 = 5,876.96/x
  3. Step 3: Cross multiply
    7,869.84x = 10,867.36 × 5,876.96
  4. Step 4: Simplify right side
    7,869.84x = 63,867,040.03
  5. Step 5: Solve for x
    x = 63,867,040.03/7,869.84
  6. Step 6: Final answer
    x = 8,115.42

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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.