Home / 18,120.59-25,004.40-10,161.22

Finding the Fourth Proportional to 18,120.59, 25,004.40 and 10,161.22

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Solution

The fourth proportional to 18,120.59, 25,004.40 and 10,161.22 is: 14,021.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.59 : 25,004.40 = 10,161.22 : x
  2. Step 2: Convert to fraction form
    18,120.59/25,004.40 = 10,161.22/x
  3. Step 3: Cross multiply
    18,120.59x = 25,004.40 × 10,161.22
  4. Step 4: Simplify right side
    18,120.59x = 254,075,084.35
  5. Step 5: Solve for x
    x = 254,075,084.35/18,120.59
  6. Step 6: Final answer
    x = 14,021.35

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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.