Home / 12,135.16-18,192.10-10,072.28

Finding the Fourth Proportional to 12,135.16, 18,192.10 and 10,072.28

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Solution

The fourth proportional to 12,135.16, 18,192.10 and 10,072.28 is: 15,099.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.16 : 18,192.10 = 10,072.28 : x
  2. Step 2: Convert to fraction form
    12,135.16/18,192.10 = 10,072.28/x
  3. Step 3: Cross multiply
    12,135.16x = 18,192.10 × 10,072.28
  4. Step 4: Simplify right side
    12,135.16x = 183,235,924.99
  5. Step 5: Solve for x
    x = 183,235,924.99/12,135.16
  6. Step 6: Final answer
    x = 15,099.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.