Home / 12,109.24-18,134.70-6,899.32

Finding the Fourth Proportional to 12,109.24, 18,134.70 and 6,899.32

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Solution

The fourth proportional to 12,109.24, 18,134.70 and 6,899.32 is: 10,332.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109.24 : 18,134.70 = 6,899.32 : x
  2. Step 2: Convert to fraction form
    12,109.24/18,134.70 = 6,899.32/x
  3. Step 3: Cross multiply
    12,109.24x = 18,134.70 × 6,899.32
  4. Step 4: Simplify right side
    12,109.24x = 125,117,098.40
  5. Step 5: Solve for x
    x = 125,117,098.40/12,109.24
  6. Step 6: Final answer
    x = 10,332.37

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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.