Home / 11,255.09-15,532.56-6,780.24

Finding the Fourth Proportional to 11,255.09, 15,532.56 and 6,780.24

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Solution

The fourth proportional to 11,255.09, 15,532.56 and 6,780.24 is: 9,357.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.09 : 15,532.56 = 6,780.24 : x
  2. Step 2: Convert to fraction form
    11,255.09/15,532.56 = 6,780.24/x
  3. Step 3: Cross multiply
    11,255.09x = 15,532.56 × 6,780.24
  4. Step 4: Simplify right side
    11,255.09x = 105,314,484.61
  5. Step 5: Solve for x
    x = 105,314,484.61/11,255.09
  6. Step 6: Final answer
    x = 9,357.06

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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.