Home / 18,515.53-25,551.33-10,017.64

Finding the Fourth Proportional to 18,515.53, 25,551.33 and 10,017.64

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Solution

The fourth proportional to 18,515.53, 25,551.33 and 10,017.64 is: 13,824.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.53 : 25,551.33 = 10,017.64 : x
  2. Step 2: Convert to fraction form
    18,515.53/25,551.33 = 10,017.64/x
  3. Step 3: Cross multiply
    18,515.53x = 25,551.33 × 10,017.64
  4. Step 4: Simplify right side
    18,515.53x = 255,963,897.70
  5. Step 5: Solve for x
    x = 255,963,897.70/18,515.53
  6. Step 6: Final answer
    x = 13,824.29

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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.