Home / 10,370.43-15,528.30-8,165.20

Finding the Fourth Proportional to 10,370.43, 15,528.30 and 8,165.20

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Solution

The fourth proportional to 10,370.43, 15,528.30 and 8,165.20 is: 12,226.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,370.43 : 15,528.30 = 8,165.20 : x
  2. Step 2: Convert to fraction form
    10,370.43/15,528.30 = 8,165.20/x
  3. Step 3: Cross multiply
    10,370.43x = 15,528.30 × 8,165.20
  4. Step 4: Simplify right side
    10,370.43x = 126,791,675.16
  5. Step 5: Solve for x
    x = 126,791,675.16/10,370.43
  6. Step 6: Final answer
    x = 12,226.27

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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.