Home / 18,203.04-25,111.80-13,159.26

Finding the Fourth Proportional to 18,203.04, 25,111.80 and 13,159.26

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Solution

The fourth proportional to 18,203.04, 25,111.80 and 13,159.26 is: 18,153.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,203.04 : 25,111.80 = 13,159.26 : x
  2. Step 2: Convert to fraction form
    18,203.04/25,111.80 = 13,159.26/x
  3. Step 3: Cross multiply
    18,203.04x = 25,111.80 × 13,159.26
  4. Step 4: Simplify right side
    18,203.04x = 330,452,705.27
  5. Step 5: Solve for x
    x = 330,452,705.27/18,203.04
  6. Step 6: Final answer
    x = 18,153.71

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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.