Home / 7,875.60-10,868.49-4,338.87

Finding the Fourth Proportional to 7,875.60, 10,868.49 and 4,338.87

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Solution

The fourth proportional to 7,875.60, 10,868.49 and 4,338.87 is: 5,987.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.60 : 10,868.49 = 4,338.87 : x
  2. Step 2: Convert to fraction form
    7,875.60/10,868.49 = 4,338.87/x
  3. Step 3: Cross multiply
    7,875.60x = 10,868.49 × 4,338.87
  4. Step 4: Simplify right side
    7,875.60x = 47,156,965.21
  5. Step 5: Solve for x
    x = 47,156,965.21/7,875.60
  6. Step 6: Final answer
    x = 5,987.73

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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.