Home / 14,914.47-20,614.88-13,108.40

Finding the Fourth Proportional to 14,914.47, 20,614.88 and 13,108.40

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Solution

The fourth proportional to 14,914.47, 20,614.88 and 13,108.40 is: 18,118.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,914.47 : 20,614.88 = 13,108.40 : x
  2. Step 2: Convert to fraction form
    14,914.47/20,614.88 = 13,108.40/x
  3. Step 3: Cross multiply
    14,914.47x = 20,614.88 × 13,108.40
  4. Step 4: Simplify right side
    14,914.47x = 270,227,924.38
  5. Step 5: Solve for x
    x = 270,227,924.38/14,914.47
  6. Step 6: Final answer
    x = 18,118.51

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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.