Home / 10,100.90-15,153.75-3,175.40

Finding the Fourth Proportional to 10,100.90, 15,153.75 and 3,175.40

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Solution

The fourth proportional to 10,100.90, 15,153.75 and 3,175.40 is: 4,763.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.90 : 15,153.75 = 3,175.40 : x
  2. Step 2: Convert to fraction form
    10,100.90/15,153.75 = 3,175.40/x
  3. Step 3: Cross multiply
    10,100.90x = 15,153.75 × 3,175.40
  4. Step 4: Simplify right side
    10,100.90x = 48,119,217.75
  5. Step 5: Solve for x
    x = 48,119,217.75/10,100.90
  6. Step 6: Final answer
    x = 4,763.85

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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.