Home / 7,865.49-10,854.38-4,328.71

Finding the Fourth Proportional to 7,865.49, 10,854.38 and 4,328.71

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Solution

The fourth proportional to 7,865.49, 10,854.38 and 4,328.71 is: 5,973.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.49 : 10,854.38 = 4,328.71 : x
  2. Step 2: Convert to fraction form
    7,865.49/10,854.38 = 4,328.71/x
  3. Step 3: Cross multiply
    7,865.49x = 10,854.38 × 4,328.71
  4. Step 4: Simplify right side
    7,865.49x = 46,985,446.94
  5. Step 5: Solve for x
    x = 46,985,446.94/7,865.49
  6. Step 6: Final answer
    x = 5,973.62

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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.