Home / 9,118.36-13,638.66-5,599.72

Finding the Fourth Proportional to 9,118.36, 13,638.66 and 5,599.72

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Solution

The fourth proportional to 9,118.36, 13,638.66 and 5,599.72 is: 8,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.36 : 13,638.66 = 5,599.72 : x
  2. Step 2: Convert to fraction form
    9,118.36/13,638.66 = 5,599.72/x
  3. Step 3: Cross multiply
    9,118.36x = 13,638.66 × 5,599.72
  4. Step 4: Simplify right side
    9,118.36x = 76,372,677.18
  5. Step 5: Solve for x
    x = 76,372,677.18/9,118.36
  6. Step 6: Final answer
    x = 8,375.70

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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.