Home / 10,109.28-15,141.36-7,751.93

Finding the Fourth Proportional to 10,109.28, 15,141.36 and 7,751.93

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Solution

The fourth proportional to 10,109.28, 15,141.36 and 7,751.93 is: 11,610.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109.28 : 15,141.36 = 7,751.93 : x
  2. Step 2: Convert to fraction form
    10,109.28/15,141.36 = 7,751.93/x
  3. Step 3: Cross multiply
    10,109.28x = 15,141.36 × 7,751.93
  4. Step 4: Simplify right side
    10,109.28x = 117,374,648.36
  5. Step 5: Solve for x
    x = 117,374,648.36/10,109.28
  6. Step 6: Final answer
    x = 11,610.58

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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.