Home / 10,070.28-15,105.36-3,914.28

Finding the Fourth Proportional to 10,070.28, 15,105.36 and 3,914.28

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Solution

The fourth proportional to 10,070.28, 15,105.36 and 3,914.28 is: 5,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,070.28 : 15,105.36 = 3,914.28 : x
  2. Step 2: Convert to fraction form
    10,070.28/15,105.36 = 3,914.28/x
  3. Step 3: Cross multiply
    10,070.28x = 15,105.36 × 3,914.28
  4. Step 4: Simplify right side
    10,070.28x = 59,126,608.54
  5. Step 5: Solve for x
    x = 59,126,608.54/10,070.28
  6. Step 6: Final answer
    x = 5,871.40

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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.