Home / 15,268.36-21,178.03-14,863.72

Finding the Fourth Proportional to 15,268.36, 21,178.03 and 14,863.72

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Solution

The fourth proportional to 15,268.36, 21,178.03 and 14,863.72 is: 20,616.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,268.36 : 21,178.03 = 14,863.72 : x
  2. Step 2: Convert to fraction form
    15,268.36/21,178.03 = 14,863.72/x
  3. Step 3: Cross multiply
    15,268.36x = 21,178.03 × 14,863.72
  4. Step 4: Simplify right side
    15,268.36x = 314,784,308.07
  5. Step 5: Solve for x
    x = 314,784,308.07/15,268.36
  6. Step 6: Final answer
    x = 20,616.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.