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Finding the Fourth Proportional to 9,399.06, 13,030.07 and 8,899.71

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Solution

The fourth proportional to 9,399.06, 13,030.07 and 8,899.71 is: 12,337.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,399.06 : 13,030.07 = 8,899.71 : x
  2. Step 2: Convert to fraction form
    9,399.06/13,030.07 = 8,899.71/x
  3. Step 3: Cross multiply
    9,399.06x = 13,030.07 × 8,899.71
  4. Step 4: Simplify right side
    9,399.06x = 115,963,799.78
  5. Step 5: Solve for x
    x = 115,963,799.78/9,399.06
  6. Step 6: Final answer
    x = 12,337.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.