Home / 18,130.08-25,017.12-10,172.28

Finding the Fourth Proportional to 18,130.08, 25,017.12 and 10,172.28

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Solution

The fourth proportional to 18,130.08, 25,017.12 and 10,172.28 is: 14,036.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.08 : 25,017.12 = 10,172.28 : x
  2. Step 2: Convert to fraction form
    18,130.08/25,017.12 = 10,172.28/x
  3. Step 3: Cross multiply
    18,130.08x = 25,017.12 × 10,172.28
  4. Step 4: Simplify right side
    18,130.08x = 254,481,149.43
  5. Step 5: Solve for x
    x = 254,481,149.43/18,130.08
  6. Step 6: Final answer
    x = 14,036.41

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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.