Home / 10,998.36-15,173.76-7,223.57

Finding the Fourth Proportional to 10,998.36, 15,173.76 and 7,223.57

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Solution

The fourth proportional to 10,998.36, 15,173.76 and 7,223.57 is: 9,965.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.36 : 15,173.76 = 7,223.57 : x
  2. Step 2: Convert to fraction form
    10,998.36/15,173.76 = 7,223.57/x
  3. Step 3: Cross multiply
    10,998.36x = 15,173.76 × 7,223.57
  4. Step 4: Simplify right side
    10,998.36x = 109,608,643.36
  5. Step 5: Solve for x
    x = 109,608,643.36/10,998.36
  6. Step 6: Final answer
    x = 9,965.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.