Home / 10,148.75-15,217.05-4,218.49

Finding the Fourth Proportional to 10,148.75, 15,217.05 and 4,218.49

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Solution

The fourth proportional to 10,148.75, 15,217.05 and 4,218.49 is: 6,325.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,148.75 : 15,217.05 = 4,218.49 : x
  2. Step 2: Convert to fraction form
    10,148.75/15,217.05 = 4,218.49/x
  3. Step 3: Cross multiply
    10,148.75x = 15,217.05 × 4,218.49
  4. Step 4: Simplify right side
    10,148.75x = 64,192,973.25
  5. Step 5: Solve for x
    x = 64,192,973.25/10,148.75
  6. Step 6: Final answer
    x = 6,325.21

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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.