Home / 10,865.28-16,295.52-4,290.24

Finding the Fourth Proportional to 10,865.28, 16,295.52 and 4,290.24

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Solution

The fourth proportional to 10,865.28, 16,295.52 and 4,290.24 is: 6,434.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.28 : 16,295.52 = 4,290.24 : x
  2. Step 2: Convert to fraction form
    10,865.28/16,295.52 = 4,290.24/x
  3. Step 3: Cross multiply
    10,865.28x = 16,295.52 × 4,290.24
  4. Step 4: Simplify right side
    10,865.28x = 69,911,691.72
  5. Step 5: Solve for x
    x = 69,911,691.72/10,865.28
  6. Step 6: Final answer
    x = 6,434.41

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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.