Home / 10,113.28-15,164.16-4,912.64

Finding the Fourth Proportional to 10,113.28, 15,164.16 and 4,912.64

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Solution

The fourth proportional to 10,113.28, 15,164.16 and 4,912.64 is: 7,366.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,113.28 : 15,164.16 = 4,912.64 : x
  2. Step 2: Convert to fraction form
    10,113.28/15,164.16 = 4,912.64/x
  3. Step 3: Cross multiply
    10,113.28x = 15,164.16 × 4,912.64
  4. Step 4: Simplify right side
    10,113.28x = 74,496,058.98
  5. Step 5: Solve for x
    x = 74,496,058.98/10,113.28
  6. Step 6: Final answer
    x = 7,366.16

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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.