Home / 18,787.26-25,926.42-10,289.40

Finding the Fourth Proportional to 18,787.26, 25,926.42 and 10,289.40

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Solution

The fourth proportional to 18,787.26, 25,926.42 and 10,289.40 is: 14,199.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.26 : 25,926.42 = 10,289.40 : x
  2. Step 2: Convert to fraction form
    18,787.26/25,926.42 = 10,289.40/x
  3. Step 3: Cross multiply
    18,787.26x = 25,926.42 × 10,289.40
  4. Step 4: Simplify right side
    18,787.26x = 266,767,305.95
  5. Step 5: Solve for x
    x = 266,767,305.95/18,787.26
  6. Step 6: Final answer
    x = 14,199.37

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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.