Home / 18,139.72-25,031.44-10,180.41

Finding the Fourth Proportional to 18,139.72, 25,031.44 and 10,180.41

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Solution

The fourth proportional to 18,139.72, 25,031.44 and 10,180.41 is: 14,048.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.72 : 25,031.44 = 10,180.41 : x
  2. Step 2: Convert to fraction form
    18,139.72/25,031.44 = 10,180.41/x
  3. Step 3: Cross multiply
    18,139.72x = 25,031.44 × 10,180.41
  4. Step 4: Simplify right side
    18,139.72x = 254,830,322.09
  5. Step 5: Solve for x
    x = 254,830,322.09/18,139.72
  6. Step 6: Final answer
    x = 14,048.19

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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.