Home / 18,130.16-25,022.12-10,172.86

Finding the Fourth Proportional to 18,130.16, 25,022.12 and 10,172.86

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Solution

The fourth proportional to 18,130.16, 25,022.12 and 10,172.86 is: 14,039.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.16 : 25,022.12 = 10,172.86 : x
  2. Step 2: Convert to fraction form
    18,130.16/25,022.12 = 10,172.86/x
  3. Step 3: Cross multiply
    18,130.16x = 25,022.12 × 10,172.86
  4. Step 4: Simplify right side
    18,130.16x = 254,546,410.24
  5. Step 5: Solve for x
    x = 254,546,410.24/18,130.16
  6. Step 6: Final answer
    x = 14,039.94

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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.