Home / 18,172.30-25,077.90-10,618.95

Finding the Fourth Proportional to 18,172.30, 25,077.90 and 10,618.95

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Solution

The fourth proportional to 18,172.30, 25,077.90 and 10,618.95 is: 14,654.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.30 : 25,077.90 = 10,618.95 : x
  2. Step 2: Convert to fraction form
    18,172.30/25,077.90 = 10,618.95/x
  3. Step 3: Cross multiply
    18,172.30x = 25,077.90 × 10,618.95
  4. Step 4: Simplify right side
    18,172.30x = 266,300,959.00
  5. Step 5: Solve for x
    x = 266,300,959.00/18,172.30
  6. Step 6: Final answer
    x = 14,654.22

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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.