Home / 13,868.02-19,159.58-13,185.26

Finding the Fourth Proportional to 13,868.02, 19,159.58 and 13,185.26

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Solution

The fourth proportional to 13,868.02, 19,159.58 and 13,185.26 is: 18,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.02 : 19,159.58 = 13,185.26 : x
  2. Step 2: Convert to fraction form
    13,868.02/19,159.58 = 13,185.26/x
  3. Step 3: Cross multiply
    13,868.02x = 19,159.58 × 13,185.26
  4. Step 4: Simplify right side
    13,868.02x = 252,623,882.07
  5. Step 5: Solve for x
    x = 252,623,882.07/13,868.02
  6. Step 6: Final answer
    x = 18,216.30

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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.