Home / 8,940.16-12,317.76-7,812.48

Finding the Fourth Proportional to 8,940.16, 12,317.76 and 7,812.48

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Solution

The fourth proportional to 8,940.16, 12,317.76 and 7,812.48 is: 10,764.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.16 : 12,317.76 = 7,812.48 : x
  2. Step 2: Convert to fraction form
    8,940.16/12,317.76 = 7,812.48/x
  3. Step 3: Cross multiply
    8,940.16x = 12,317.76 × 7,812.48
  4. Step 4: Simplify right side
    8,940.16x = 96,232,253.64
  5. Step 5: Solve for x
    x = 96,232,253.64/8,940.16
  6. Step 6: Final answer
    x = 10,764.04

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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.