Home / 12,614.10-18,921.12-6,995.21

Finding the Fourth Proportional to 12,614.10, 18,921.12 and 6,995.21

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Solution

The fourth proportional to 12,614.10, 18,921.12 and 6,995.21 is: 10,492.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,614.10 : 18,921.12 = 6,995.21 : x
  2. Step 2: Convert to fraction form
    12,614.10/18,921.12 = 6,995.21/x
  3. Step 3: Cross multiply
    12,614.10x = 18,921.12 × 6,995.21
  4. Step 4: Simplify right side
    12,614.10x = 132,357,113.23
  5. Step 5: Solve for x
    x = 132,357,113.23/12,614.10
  6. Step 6: Final answer
    x = 10,492.79

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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.