Home / 9,916.20-13,686.74-6,734.81

Finding the Fourth Proportional to 9,916.20, 13,686.74 and 6,734.81

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Solution

The fourth proportional to 9,916.20, 13,686.74 and 6,734.81 is: 9,295.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.20 : 13,686.74 = 6,734.81 : x
  2. Step 2: Convert to fraction form
    9,916.20/13,686.74 = 6,734.81/x
  3. Step 3: Cross multiply
    9,916.20x = 13,686.74 × 6,734.81
  4. Step 4: Simplify right side
    9,916.20x = 92,177,491.31
  5. Step 5: Solve for x
    x = 92,177,491.31/9,916.20
  6. Step 6: Final answer
    x = 9,295.65

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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.