Home / 13,179.18-18,186.48-7,210.86

Finding the Fourth Proportional to 13,179.18, 18,186.48 and 7,210.86

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Solution

The fourth proportional to 13,179.18, 18,186.48 and 7,210.86 is: 9,950.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.18 : 18,186.48 = 7,210.86 : x
  2. Step 2: Convert to fraction form
    13,179.18/18,186.48 = 7,210.86/x
  3. Step 3: Cross multiply
    13,179.18x = 18,186.48 × 7,210.86
  4. Step 4: Simplify right side
    13,179.18x = 131,140,161.17
  5. Step 5: Solve for x
    x = 131,140,161.17/13,179.18
  6. Step 6: Final answer
    x = 9,950.56

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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.