Home / 13,184.37-18,196.11-7,521.12

Finding the Fourth Proportional to 13,184.37, 18,196.11 and 7,521.12

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Solution

The fourth proportional to 13,184.37, 18,196.11 and 7,521.12 is: 10,380.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.37 : 18,196.11 = 7,521.12 : x
  2. Step 2: Convert to fraction form
    13,184.37/18,196.11 = 7,521.12/x
  3. Step 3: Cross multiply
    13,184.37x = 18,196.11 × 7,521.12
  4. Step 4: Simplify right side
    13,184.37x = 136,855,126.84
  5. Step 5: Solve for x
    x = 136,855,126.84/13,184.37
  6. Step 6: Final answer
    x = 10,380.10

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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.