Home / 19,178.72-26,465.28-10,680.56

Finding the Fourth Proportional to 19,178.72, 26,465.28 and 10,680.56

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Solution

The fourth proportional to 19,178.72, 26,465.28 and 10,680.56 is: 14,738.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178.72 : 26,465.28 = 10,680.56 : x
  2. Step 2: Convert to fraction form
    19,178.72/26,465.28 = 10,680.56/x
  3. Step 3: Cross multiply
    19,178.72x = 26,465.28 × 10,680.56
  4. Step 4: Simplify right side
    19,178.72x = 282,664,010.96
  5. Step 5: Solve for x
    x = 282,664,010.96/19,178.72
  6. Step 6: Final answer
    x = 14,738.42

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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.