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Finding the Fourth Proportional to 8,850.40, 13,256.40 and 7,314.40

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Solution

The fourth proportional to 8,850.40, 13,256.40 and 7,314.40 is: 10,955.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,850.40 : 13,256.40 = 7,314.40 : x
  2. Step 2: Convert to fraction form
    8,850.40/13,256.40 = 7,314.40/x
  3. Step 3: Cross multiply
    8,850.40x = 13,256.40 × 7,314.40
  4. Step 4: Simplify right side
    8,850.40x = 96,962,612.16
  5. Step 5: Solve for x
    x = 96,962,612.16/8,850.40
  6. Step 6: Final answer
    x = 10,955.73

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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.