Home / 10,208.13-15,310.56-3,971.00

Finding the Fourth Proportional to 10,208.13, 15,310.56 and 3,971.00

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Solution

The fourth proportional to 10,208.13, 15,310.56 and 3,971.00 is: 5,955.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,208.13 : 15,310.56 = 3,971.00 : x
  2. Step 2: Convert to fraction form
    10,208.13/15,310.56 = 3,971.00/x
  3. Step 3: Cross multiply
    10,208.13x = 15,310.56 × 3,971.00
  4. Step 4: Simplify right side
    10,208.13x = 60,798,157.21
  5. Step 5: Solve for x
    x = 60,798,157.21/10,208.13
  6. Step 6: Final answer
    x = 5,955.86

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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.