Home / 7,875.56-10,868.31-4,338.70

Finding the Fourth Proportional to 7,875.56, 10,868.31 and 4,338.70

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Solution

The fourth proportional to 7,875.56, 10,868.31 and 4,338.70 is: 5,987.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.56 : 10,868.31 = 4,338.70 : x
  2. Step 2: Convert to fraction form
    7,875.56/10,868.31 = 4,338.70/x
  3. Step 3: Cross multiply
    7,875.56x = 10,868.31 × 4,338.70
  4. Step 4: Simplify right side
    7,875.56x = 47,154,309.43
  5. Step 5: Solve for x
    x = 47,154,309.43/7,875.56
  6. Step 6: Final answer
    x = 5,987.42

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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.