Home / 13,975.47-19,286.04-7,926.86

Finding the Fourth Proportional to 13,975.47, 19,286.04 and 7,926.86

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Solution

The fourth proportional to 13,975.47, 19,286.04 and 7,926.86 is: 10,939.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.47 : 19,286.04 = 7,926.86 : x
  2. Step 2: Convert to fraction form
    13,975.47/19,286.04 = 7,926.86/x
  3. Step 3: Cross multiply
    13,975.47x = 19,286.04 × 7,926.86
  4. Step 4: Simplify right side
    13,975.47x = 152,877,816.98
  5. Step 5: Solve for x
    x = 152,877,816.98/13,975.47
  6. Step 6: Final answer
    x = 10,939.01

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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.