Home / 13,926.56-19,219.03-7,959.20

Finding the Fourth Proportional to 13,926.56, 19,219.03 and 7,959.20

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Solution

The fourth proportional to 13,926.56, 19,219.03 and 7,959.20 is: 10,983.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.56 : 19,219.03 = 7,959.20 : x
  2. Step 2: Convert to fraction form
    13,926.56/19,219.03 = 7,959.20/x
  3. Step 3: Cross multiply
    13,926.56x = 19,219.03 × 7,959.20
  4. Step 4: Simplify right side
    13,926.56x = 152,967,987.58
  5. Step 5: Solve for x
    x = 152,967,987.58/13,926.56
  6. Step 6: Final answer
    x = 10,983.91

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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.