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Finding the Fourth Proportional to 9,321.54, 14,011.11 and 8,860.74

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Solution

The fourth proportional to 9,321.54, 14,011.11 and 8,860.74 is: 13,318.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321.54 : 14,011.11 = 8,860.74 : x
  2. Step 2: Convert to fraction form
    9,321.54/14,011.11 = 8,860.74/x
  3. Step 3: Cross multiply
    9,321.54x = 14,011.11 × 8,860.74
  4. Step 4: Simplify right side
    9,321.54x = 124,148,802.82
  5. Step 5: Solve for x
    x = 124,148,802.82/9,321.54
  6. Step 6: Final answer
    x = 13,318.49

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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.