Home / 10,612.91-15,913.26-4,377.21

Finding the Fourth Proportional to 10,612.91, 15,913.26 and 4,377.21

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Solution

The fourth proportional to 10,612.91, 15,913.26 and 4,377.21 is: 6,563.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,612.91 : 15,913.26 = 4,377.21 : x
  2. Step 2: Convert to fraction form
    10,612.91/15,913.26 = 4,377.21/x
  3. Step 3: Cross multiply
    10,612.91x = 15,913.26 × 4,377.21
  4. Step 4: Simplify right side
    10,612.91x = 69,655,680.80
  5. Step 5: Solve for x
    x = 69,655,680.80/10,612.91
  6. Step 6: Final answer
    x = 6,563.30

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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.