Home / 14,000.13-20,897.78-12,339.43

Finding the Fourth Proportional to 14,000.13, 20,897.78 and 12,339.43

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Solution

The fourth proportional to 14,000.13, 20,897.78 and 12,339.43 is: 18,418.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.13 : 20,897.78 = 12,339.43 : x
  2. Step 2: Convert to fraction form
    14,000.13/20,897.78 = 12,339.43/x
  3. Step 3: Cross multiply
    14,000.13x = 20,897.78 × 12,339.43
  4. Step 4: Simplify right side
    14,000.13x = 257,866,579.52
  5. Step 5: Solve for x
    x = 257,866,579.52/14,000.13
  6. Step 6: Final answer
    x = 18,418.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.