Home / 14,314.75-21,478.91-6,915.06

Finding the Fourth Proportional to 14,314.75, 21,478.91 and 6,915.06

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Solution

The fourth proportional to 14,314.75, 21,478.91 and 6,915.06 is: 10,375.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,314.75 : 21,478.91 = 6,915.06 : x
  2. Step 2: Convert to fraction form
    14,314.75/21,478.91 = 6,915.06/x
  3. Step 3: Cross multiply
    14,314.75x = 21,478.91 × 6,915.06
  4. Step 4: Simplify right side
    14,314.75x = 148,527,916.81
  5. Step 5: Solve for x
    x = 148,527,916.81/14,314.75
  6. Step 6: Final answer
    x = 10,375.87

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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.