Home / 7,865.38-10,854.18-4,328.56

Finding the Fourth Proportional to 7,865.38, 10,854.18 and 4,328.56

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Solution

The fourth proportional to 7,865.38, 10,854.18 and 4,328.56 is: 5,973.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.38 : 10,854.18 = 4,328.56 : x
  2. Step 2: Convert to fraction form
    7,865.38/10,854.18 = 4,328.56/x
  3. Step 3: Cross multiply
    7,865.38x = 10,854.18 × 4,328.56
  4. Step 4: Simplify right side
    7,865.38x = 46,982,969.38
  5. Step 5: Solve for x
    x = 46,982,969.38/7,865.38
  6. Step 6: Final answer
    x = 5,973.39

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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.