Home / 10,133.10-15,126.75-8,645.94

Finding the Fourth Proportional to 10,133.10, 15,126.75 and 8,645.94

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Solution

The fourth proportional to 10,133.10, 15,126.75 and 8,645.94 is: 12,906.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,133.10 : 15,126.75 = 8,645.94 : x
  2. Step 2: Convert to fraction form
    10,133.10/15,126.75 = 8,645.94/x
  3. Step 3: Cross multiply
    10,133.10x = 15,126.75 × 8,645.94
  4. Step 4: Simplify right side
    10,133.10x = 130,784,972.90
  5. Step 5: Solve for x
    x = 130,784,972.90/10,133.10
  6. Step 6: Final answer
    x = 12,906.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.