Home / 10,243.13-15,350.40-7,742.25

Finding the Fourth Proportional to 10,243.13, 15,350.40 and 7,742.25

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Solution

The fourth proportional to 10,243.13, 15,350.40 and 7,742.25 is: 11,602.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,243.13 : 15,350.40 = 7,742.25 : x
  2. Step 2: Convert to fraction form
    10,243.13/15,350.40 = 7,742.25/x
  3. Step 3: Cross multiply
    10,243.13x = 15,350.40 × 7,742.25
  4. Step 4: Simplify right side
    10,243.13x = 118,846,634.40
  5. Step 5: Solve for x
    x = 118,846,634.40/10,243.13
  6. Step 6: Final answer
    x = 11,602.58

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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.