Home / 13,918.86-20,754.14-12,373.38

Finding the Fourth Proportional to 13,918.86, 20,754.14 and 12,373.38

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Solution

The fourth proportional to 13,918.86, 20,754.14 and 12,373.38 is: 18,449.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.86 : 20,754.14 = 12,373.38 : x
  2. Step 2: Convert to fraction form
    13,918.86/20,754.14 = 12,373.38/x
  3. Step 3: Cross multiply
    13,918.86x = 20,754.14 × 12,373.38
  4. Step 4: Simplify right side
    13,918.86x = 256,798,860.79
  5. Step 5: Solve for x
    x = 256,798,860.79/13,918.86
  6. Step 6: Final answer
    x = 18,449.70

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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.