Home / 9,213.12-12,717-5,436.12

Finding the Fourth Proportional to 9,213.12, 12,717 and 5,436.12

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Solution

The fourth proportional to 9,213.12, 12,717 and 5,436.12 is: 7,503.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,213.12 : 12,717 = 5,436.12 : x
  2. Step 2: Convert to fraction form
    9,213.12/12,717 = 5,436.12/x
  3. Step 3: Cross multiply
    9,213.12x = 12,717 × 5,436.12
  4. Step 4: Simplify right side
    9,213.12x = 69,131,138.04
  5. Step 5: Solve for x
    x = 69,131,138.04/9,213.12
  6. Step 6: Final answer
    x = 7,503.55

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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.