Home / 13,926.25-19,218.63-7,639.03

Finding the Fourth Proportional to 13,926.25, 19,218.63 and 7,639.03

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Solution

The fourth proportional to 13,926.25, 19,218.63 and 7,639.03 is: 10,542.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.25 : 19,218.63 = 7,639.03 : x
  2. Step 2: Convert to fraction form
    13,926.25/19,218.63 = 7,639.03/x
  3. Step 3: Cross multiply
    13,926.25x = 19,218.63 × 7,639.03
  4. Step 4: Simplify right side
    13,926.25x = 146,811,691.13
  5. Step 5: Solve for x
    x = 146,811,691.13/13,926.25
  6. Step 6: Final answer
    x = 10,542.08

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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.