Home / 10,419.13-15,628.70-3,498.49

Finding the Fourth Proportional to 10,419.13, 15,628.70 and 3,498.49

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Solution

The fourth proportional to 10,419.13, 15,628.70 and 3,498.49 is: 5,247.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.13 : 15,628.70 = 3,498.49 : x
  2. Step 2: Convert to fraction form
    10,419.13/15,628.70 = 3,498.49/x
  3. Step 3: Cross multiply
    10,419.13x = 15,628.70 × 3,498.49
  4. Step 4: Simplify right side
    10,419.13x = 54,676,850.66
  5. Step 5: Solve for x
    x = 54,676,850.66/10,419.13
  6. Step 6: Final answer
    x = 5,247.74

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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.