Home / 16,531.78-22,811.42-9,817.70

Finding the Fourth Proportional to 16,531.78, 22,811.42 and 9,817.70

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Solution

The fourth proportional to 16,531.78, 22,811.42 and 9,817.70 is: 13,546.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,531.78 : 22,811.42 = 9,817.70 : x
  2. Step 2: Convert to fraction form
    16,531.78/22,811.42 = 9,817.70/x
  3. Step 3: Cross multiply
    16,531.78x = 22,811.42 × 9,817.70
  4. Step 4: Simplify right side
    16,531.78x = 223,955,678.13
  5. Step 5: Solve for x
    x = 223,955,678.13/16,531.78
  6. Step 6: Final answer
    x = 13,546.98

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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.