Home / 19,306.68-26,639.28-10,921.56

Finding the Fourth Proportional to 19,306.68, 26,639.28 and 10,921.56

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Solution

The fourth proportional to 19,306.68, 26,639.28 and 10,921.56 is: 15,069.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,306.68 : 26,639.28 = 10,921.56 : x
  2. Step 2: Convert to fraction form
    19,306.68/26,639.28 = 10,921.56/x
  3. Step 3: Cross multiply
    19,306.68x = 26,639.28 × 10,921.56
  4. Step 4: Simplify right side
    19,306.68x = 290,942,494.88
  5. Step 5: Solve for x
    x = 290,942,494.88/19,306.68
  6. Step 6: Final answer
    x = 15,069.52

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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.