Home / 18,551.28-25,634.71-13,506.74

Finding the Fourth Proportional to 18,551.28, 25,634.71 and 13,506.74

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Solution

The fourth proportional to 18,551.28, 25,634.71 and 13,506.74 is: 18,664.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.28 : 25,634.71 = 13,506.74 : x
  2. Step 2: Convert to fraction form
    18,551.28/25,634.71 = 13,506.74/x
  3. Step 3: Cross multiply
    18,551.28x = 25,634.71 × 13,506.74
  4. Step 4: Simplify right side
    18,551.28x = 346,241,362.95
  5. Step 5: Solve for x
    x = 346,241,362.95/18,551.28
  6. Step 6: Final answer
    x = 18,664.01

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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.