Home / 7,865.61-10,854.75-4,329.03

Finding the Fourth Proportional to 7,865.61, 10,854.75 and 4,329.03

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Solution

The fourth proportional to 7,865.61, 10,854.75 and 4,329.03 is: 5,974.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.61 : 10,854.75 = 4,329.03 : x
  2. Step 2: Convert to fraction form
    7,865.61/10,854.75 = 4,329.03/x
  3. Step 3: Cross multiply
    7,865.61x = 10,854.75 × 4,329.03
  4. Step 4: Simplify right side
    7,865.61x = 46,990,565.53
  5. Step 5: Solve for x
    x = 46,990,565.53/7,865.61
  6. Step 6: Final answer
    x = 5,974.18

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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.