Home / 10,140.30-15,206.76-3,897.09

Finding the Fourth Proportional to 10,140.30, 15,206.76 and 3,897.09

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Solution

The fourth proportional to 10,140.30, 15,206.76 and 3,897.09 is: 5,844.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.30 : 15,206.76 = 3,897.09 : x
  2. Step 2: Convert to fraction form
    10,140.30/15,206.76 = 3,897.09/x
  3. Step 3: Cross multiply
    10,140.30x = 15,206.76 × 3,897.09
  4. Step 4: Simplify right side
    10,140.30x = 59,262,112.33
  5. Step 5: Solve for x
    x = 59,262,112.33/10,140.30
  6. Step 6: Final answer
    x = 5,844.22

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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.