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Finding the Fourth Proportional to 9,334.40, 12,881.41 and 5,085.68

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Solution

The fourth proportional to 9,334.40, 12,881.41 and 5,085.68 is: 7,018.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,334.40 : 12,881.41 = 5,085.68 : x
  2. Step 2: Convert to fraction form
    9,334.40/12,881.41 = 5,085.68/x
  3. Step 3: Cross multiply
    9,334.40x = 12,881.41 × 5,085.68
  4. Step 4: Simplify right side
    9,334.40x = 65,510,652.09
  5. Step 5: Solve for x
    x = 65,510,652.09/9,334.40
  6. Step 6: Final answer
    x = 7,018.20

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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.