Home / 19,426.78-26,808.11-10,928.75

Finding the Fourth Proportional to 19,426.78, 26,808.11 and 10,928.75

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Solution

The fourth proportional to 19,426.78, 26,808.11 and 10,928.75 is: 15,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,426.78 : 26,808.11 = 10,928.75 : x
  2. Step 2: Convert to fraction form
    19,426.78/26,808.11 = 10,928.75/x
  3. Step 3: Cross multiply
    19,426.78x = 26,808.11 × 10,928.75
  4. Step 4: Simplify right side
    19,426.78x = 292,979,132.16
  5. Step 5: Solve for x
    x = 292,979,132.16/19,426.78
  6. Step 6: Final answer
    x = 15,081.20

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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.