Home / 13,926.74-19,217.64-7,958.38

Finding the Fourth Proportional to 13,926.74, 19,217.64 and 7,958.38

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Solution

The fourth proportional to 13,926.74, 19,217.64 and 7,958.38 is: 10,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.74 : 19,217.64 = 7,958.38 : x
  2. Step 2: Convert to fraction form
    13,926.74/19,217.64 = 7,958.38/x
  3. Step 3: Cross multiply
    13,926.74x = 19,217.64 × 7,958.38
  4. Step 4: Simplify right side
    13,926.74x = 152,941,281.82
  5. Step 5: Solve for x
    x = 152,941,281.82/13,926.74
  6. Step 6: Final answer
    x = 10,981.84

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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.