Home / 14,657.26-21,933.34-12,689.66

Finding the Fourth Proportional to 14,657.26, 21,933.34 and 12,689.66

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Solution

The fourth proportional to 14,657.26, 21,933.34 and 12,689.66 is: 18,988.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,657.26 : 21,933.34 = 12,689.66 : x
  2. Step 2: Convert to fraction form
    14,657.26/21,933.34 = 12,689.66/x
  3. Step 3: Cross multiply
    14,657.26x = 21,933.34 × 12,689.66
  4. Step 4: Simplify right side
    14,657.26x = 278,326,540.71
  5. Step 5: Solve for x
    x = 278,326,540.71/14,657.26
  6. Step 6: Final answer
    x = 18,988.99

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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.