Home / 7,876.09-10,868.99-4,339.30

Finding the Fourth Proportional to 7,876.09, 10,868.99 and 4,339.30

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Solution

The fourth proportional to 7,876.09, 10,868.99 and 4,339.30 is: 5,988.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876.09 : 10,868.99 = 4,339.30 : x
  2. Step 2: Convert to fraction form
    7,876.09/10,868.99 = 4,339.30/x
  3. Step 3: Cross multiply
    7,876.09x = 10,868.99 × 4,339.30
  4. Step 4: Simplify right side
    7,876.09x = 47,163,791.98
  5. Step 5: Solve for x
    x = 47,163,791.98/7,876.09
  6. Step 6: Final answer
    x = 5,988.23

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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.