Home / 10,101.28-15,128.42-9,750.88

Finding the Fourth Proportional to 10,101.28, 15,128.42 and 9,750.88

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Solution

The fourth proportional to 10,101.28, 15,128.42 and 9,750.88 is: 14,603.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,101.28 : 15,128.42 = 9,750.88 : x
  2. Step 2: Convert to fraction form
    10,101.28/15,128.42 = 9,750.88/x
  3. Step 3: Cross multiply
    10,101.28x = 15,128.42 × 9,750.88
  4. Step 4: Simplify right side
    10,101.28x = 147,515,408.01
  5. Step 5: Solve for x
    x = 147,515,408.01/10,101.28
  6. Step 6: Final answer
    x = 14,603.64

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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.