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Finding the Fourth Proportional to 18,011.40, 24,825.85 and 12,040.89

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Solution

The fourth proportional to 18,011.40, 24,825.85 and 12,040.89 is: 16,596.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,011.40 : 24,825.85 = 12,040.89 : x
  2. Step 2: Convert to fraction form
    18,011.40/24,825.85 = 12,040.89/x
  3. Step 3: Cross multiply
    18,011.40x = 24,825.85 × 12,040.89
  4. Step 4: Simplify right side
    18,011.40x = 298,925,329.01
  5. Step 5: Solve for x
    x = 298,925,329.01/18,011.40
  6. Step 6: Final answer
    x = 16,596.45

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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.