Home / 10,948.78-16,431.09-4,376.80

Finding the Fourth Proportional to 10,948.78, 16,431.09 and 4,376.80

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Solution

The fourth proportional to 10,948.78, 16,431.09 and 4,376.80 is: 6,568.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,948.78 : 16,431.09 = 4,376.80 : x
  2. Step 2: Convert to fraction form
    10,948.78/16,431.09 = 4,376.80/x
  3. Step 3: Cross multiply
    10,948.78x = 16,431.09 × 4,376.80
  4. Step 4: Simplify right side
    10,948.78x = 71,915,594.71
  5. Step 5: Solve for x
    x = 71,915,594.71/10,948.78
  6. Step 6: Final answer
    x = 6,568.37

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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.