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Finding the Fourth Proportional to 12,408.93, 17,123.93 and 9,065.88

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Solution

The fourth proportional to 12,408.93, 17,123.93 and 9,065.88 is: 12,510.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.93 : 17,123.93 = 9,065.88 : x
  2. Step 2: Convert to fraction form
    12,408.93/17,123.93 = 9,065.88/x
  3. Step 3: Cross multiply
    12,408.93x = 17,123.93 × 9,065.88
  4. Step 4: Simplify right side
    12,408.93x = 155,243,449.18
  5. Step 5: Solve for x
    x = 155,243,449.18/12,408.93
  6. Step 6: Final answer
    x = 12,510.62

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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.