Home / 10,116.36-15,173.28-4,272.21

Finding the Fourth Proportional to 10,116.36, 15,173.28 and 4,272.21

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Solution

The fourth proportional to 10,116.36, 15,173.28 and 4,272.21 is: 6,407.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,116.36 : 15,173.28 = 4,272.21 : x
  2. Step 2: Convert to fraction form
    10,116.36/15,173.28 = 4,272.21/x
  3. Step 3: Cross multiply
    10,116.36x = 15,173.28 × 4,272.21
  4. Step 4: Simplify right side
    10,116.36x = 64,823,438.55
  5. Step 5: Solve for x
    x = 64,823,438.55/10,116.36
  6. Step 6: Final answer
    x = 6,407.78

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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.