Home / 18,130.12-25,019.70-10,172.44

Finding the Fourth Proportional to 18,130.12, 25,019.70 and 10,172.44

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Solution

The fourth proportional to 18,130.12, 25,019.70 and 10,172.44 is: 14,038.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.12 : 25,019.70 = 10,172.44 : x
  2. Step 2: Convert to fraction form
    18,130.12/25,019.70 = 10,172.44/x
  3. Step 3: Cross multiply
    18,130.12x = 25,019.70 × 10,172.44
  4. Step 4: Simplify right side
    18,130.12x = 254,511,397.07
  5. Step 5: Solve for x
    x = 254,511,397.07/18,130.12
  6. Step 6: Final answer
    x = 14,038.04

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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.