Home / 13,926.98-19,220.62-7,959.51

Finding the Fourth Proportional to 13,926.98, 19,220.62 and 7,959.51

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Solution

The fourth proportional to 13,926.98, 19,220.62 and 7,959.51 is: 10,984.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.98 : 19,220.62 = 7,959.51 : x
  2. Step 2: Convert to fraction form
    13,926.98/19,220.62 = 7,959.51/x
  3. Step 3: Cross multiply
    13,926.98x = 19,220.62 × 7,959.51
  4. Step 4: Simplify right side
    13,926.98x = 152,986,697.20
  5. Step 5: Solve for x
    x = 152,986,697.20/13,926.98
  6. Step 6: Final answer
    x = 10,984.91

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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.