Home / 10,113.20-15,200.07-8,369.40

Finding the Fourth Proportional to 10,113.20, 15,200.07 and 8,369.40

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Solution

The fourth proportional to 10,113.20, 15,200.07 and 8,369.40 is: 12,579.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,113.20 : 15,200.07 = 8,369.40 : x
  2. Step 2: Convert to fraction form
    10,113.20/15,200.07 = 8,369.40/x
  3. Step 3: Cross multiply
    10,113.20x = 15,200.07 × 8,369.40
  4. Step 4: Simplify right side
    10,113.20x = 127,215,424.01
  5. Step 5: Solve for x
    x = 127,215,424.01/10,113.20
  6. Step 6: Final answer
    x = 12,579.15

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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.