Home / 13,926.68-19,219.22-7,959.32

Finding the Fourth Proportional to 13,926.68, 19,219.22 and 7,959.32

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Solution

The fourth proportional to 13,926.68, 19,219.22 and 7,959.32 is: 10,984.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.68 : 19,219.22 = 7,959.32 : x
  2. Step 2: Convert to fraction form
    13,926.68/19,219.22 = 7,959.32/x
  3. Step 3: Cross multiply
    13,926.68x = 19,219.22 × 7,959.32
  4. Step 4: Simplify right side
    13,926.68x = 152,971,922.13
  5. Step 5: Solve for x
    x = 152,971,922.13/13,926.68
  6. Step 6: Final answer
    x = 10,984.09

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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.