Home / 9,837.28-13,575.36-5,645.56

Finding the Fourth Proportional to 9,837.28, 13,575.36 and 5,645.56

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Solution

The fourth proportional to 9,837.28, 13,575.36 and 5,645.56 is: 7,790.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,837.28 : 13,575.36 = 5,645.56 : x
  2. Step 2: Convert to fraction form
    9,837.28/13,575.36 = 5,645.56/x
  3. Step 3: Cross multiply
    9,837.28x = 13,575.36 × 5,645.56
  4. Step 4: Simplify right side
    9,837.28x = 76,640,509.40
  5. Step 5: Solve for x
    x = 76,640,509.40/9,837.28
  6. Step 6: Final answer
    x = 7,790.82

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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.