Home / 10,138.53-15,209.01-3,897.09

Finding the Fourth Proportional to 10,138.53, 15,209.01 and 3,897.09

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Solution

The fourth proportional to 10,138.53, 15,209.01 and 3,897.09 is: 5,846.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.53 : 15,209.01 = 3,897.09 : x
  2. Step 2: Convert to fraction form
    10,138.53/15,209.01 = 3,897.09/x
  3. Step 3: Cross multiply
    10,138.53x = 15,209.01 × 3,897.09
  4. Step 4: Simplify right side
    10,138.53x = 59,270,880.78
  5. Step 5: Solve for x
    x = 59,270,880.78/10,138.53
  6. Step 6: Final answer
    x = 5,846.10

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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.