Home / 10,290.39-15,432.53-4,367.18

Finding the Fourth Proportional to 10,290.39, 15,432.53 and 4,367.18

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Solution

The fourth proportional to 10,290.39, 15,432.53 and 4,367.18 is: 6,549.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290.39 : 15,432.53 = 4,367.18 : x
  2. Step 2: Convert to fraction form
    10,290.39/15,432.53 = 4,367.18/x
  3. Step 3: Cross multiply
    10,290.39x = 15,432.53 × 4,367.18
  4. Step 4: Simplify right side
    10,290.39x = 67,396,653.11
  5. Step 5: Solve for x
    x = 67,396,653.11/10,290.39
  6. Step 6: Final answer
    x = 6,549.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.