Home / 11,079.55-15,288.60-6,603.49

Finding the Fourth Proportional to 11,079.55, 15,288.60 and 6,603.49

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Solution

The fourth proportional to 11,079.55, 15,288.60 and 6,603.49 is: 9,112.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.55 : 15,288.60 = 6,603.49 : x
  2. Step 2: Convert to fraction form
    11,079.55/15,288.60 = 6,603.49/x
  3. Step 3: Cross multiply
    11,079.55x = 15,288.60 × 6,603.49
  4. Step 4: Simplify right side
    11,079.55x = 100,958,117.21
  5. Step 5: Solve for x
    x = 100,958,117.21/11,079.55
  6. Step 6: Final answer
    x = 9,112.11

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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.