Home / 18,161.32-25,051.31-12,486.22

Finding the Fourth Proportional to 18,161.32, 25,051.31 and 12,486.22

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Solution

The fourth proportional to 18,161.32, 25,051.31 and 12,486.22 is: 17,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.32 : 25,051.31 = 12,486.22 : x
  2. Step 2: Convert to fraction form
    18,161.32/25,051.31 = 12,486.22/x
  3. Step 3: Cross multiply
    18,161.32x = 25,051.31 × 12,486.22
  4. Step 4: Simplify right side
    18,161.32x = 312,796,089.71
  5. Step 5: Solve for x
    x = 312,796,089.71/18,161.32
  6. Step 6: Final answer
    x = 17,223.20

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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.