Home / 9,081.25-12,529.91-5,302.25

Finding the Fourth Proportional to 9,081.25, 12,529.91 and 5,302.25

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Solution

The fourth proportional to 9,081.25, 12,529.91 and 5,302.25 is: 7,315.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,081.25 : 12,529.91 = 5,302.25 : x
  2. Step 2: Convert to fraction form
    9,081.25/12,529.91 = 5,302.25/x
  3. Step 3: Cross multiply
    9,081.25x = 12,529.91 × 5,302.25
  4. Step 4: Simplify right side
    9,081.25x = 66,436,715.30
  5. Step 5: Solve for x
    x = 66,436,715.30/9,081.25
  6. Step 6: Final answer
    x = 7,315.81

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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.