Home / 19,364.28-26,722.72-10,980.78

Finding the Fourth Proportional to 19,364.28, 26,722.72 and 10,980.78

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Solution

The fourth proportional to 19,364.28, 26,722.72 and 10,980.78 is: 15,153.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,364.28 : 26,722.72 = 10,980.78 : x
  2. Step 2: Convert to fraction form
    19,364.28/26,722.72 = 10,980.78/x
  3. Step 3: Cross multiply
    19,364.28x = 26,722.72 × 10,980.78
  4. Step 4: Simplify right side
    19,364.28x = 293,436,309.32
  5. Step 5: Solve for x
    x = 293,436,309.32/19,364.28
  6. Step 6: Final answer
    x = 15,153.48

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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.