Home / 9,320.10-12,861.63-6,940.72

Finding the Fourth Proportional to 9,320.10, 12,861.63 and 6,940.72

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Solution

The fourth proportional to 9,320.10, 12,861.63 and 6,940.72 is: 9,578.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.10 : 12,861.63 = 6,940.72 : x
  2. Step 2: Convert to fraction form
    9,320.10/12,861.63 = 6,940.72/x
  3. Step 3: Cross multiply
    9,320.10x = 12,861.63 × 6,940.72
  4. Step 4: Simplify right side
    9,320.10x = 89,268,972.57
  5. Step 5: Solve for x
    x = 89,268,972.57/9,320.10
  6. Step 6: Final answer
    x = 9,578.11

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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.