Home / 9,328.53-12,872.40-5,349.57

Finding the Fourth Proportional to 9,328.53, 12,872.40 and 5,349.57

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Solution

The fourth proportional to 9,328.53, 12,872.40 and 5,349.57 is: 7,381.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.53 : 12,872.40 = 5,349.57 : x
  2. Step 2: Convert to fraction form
    9,328.53/12,872.40 = 5,349.57/x
  3. Step 3: Cross multiply
    9,328.53x = 12,872.40 × 5,349.57
  4. Step 4: Simplify right side
    9,328.53x = 68,861,804.87
  5. Step 5: Solve for x
    x = 68,861,804.87/9,328.53
  6. Step 6: Final answer
    x = 7,381.85

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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.