Home / 6,916.40-10,342.20-5,166.80

Finding the Fourth Proportional to 6,916.40, 10,342.20 and 5,166.80

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Solution

The fourth proportional to 6,916.40, 10,342.20 and 5,166.80 is: 7,726.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916.40 : 10,342.20 = 5,166.80 : x
  2. Step 2: Convert to fraction form
    6,916.40/10,342.20 = 5,166.80/x
  3. Step 3: Cross multiply
    6,916.40x = 10,342.20 × 5,166.80
  4. Step 4: Simplify right side
    6,916.40x = 53,436,078.96
  5. Step 5: Solve for x
    x = 53,436,078.96/6,916.40
  6. Step 6: Final answer
    x = 7,726.00

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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.