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Finding the Fourth Proportional to 9,360.93, 13,956.22 and 8,309.11

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Solution

The fourth proportional to 9,360.93, 13,956.22 and 8,309.11 is: 12,388.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,360.93 : 13,956.22 = 8,309.11 : x
  2. Step 2: Convert to fraction form
    9,360.93/13,956.22 = 8,309.11/x
  3. Step 3: Cross multiply
    9,360.93x = 13,956.22 × 8,309.11
  4. Step 4: Simplify right side
    9,360.93x = 115,963,767.16
  5. Step 5: Solve for x
    x = 115,963,767.16/9,360.93
  6. Step 6: Final answer
    x = 12,388.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.