Home / 14,065.71-21,088.14-8,517.72

Finding the Fourth Proportional to 14,065.71, 21,088.14 and 8,517.72

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Solution

The fourth proportional to 14,065.71, 21,088.14 and 8,517.72 is: 12,770.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,065.71 : 21,088.14 = 8,517.72 : x
  2. Step 2: Convert to fraction form
    14,065.71/21,088.14 = 8,517.72/x
  3. Step 3: Cross multiply
    14,065.71x = 21,088.14 × 8,517.72
  4. Step 4: Simplify right side
    14,065.71x = 179,622,871.84
  5. Step 5: Solve for x
    x = 179,622,871.84/14,065.71
  6. Step 6: Final answer
    x = 12,770.27

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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.