Home / 13,364.68-18,441.18-7,699.66

Finding the Fourth Proportional to 13,364.68, 18,441.18 and 7,699.66

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Solution

The fourth proportional to 13,364.68, 18,441.18 and 7,699.66 is: 10,624.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,364.68 : 18,441.18 = 7,699.66 : x
  2. Step 2: Convert to fraction form
    13,364.68/18,441.18 = 7,699.66/x
  3. Step 3: Cross multiply
    13,364.68x = 18,441.18 × 7,699.66
  4. Step 4: Simplify right side
    13,364.68x = 141,990,816.00
  5. Step 5: Solve for x
    x = 141,990,816.00/13,364.68
  6. Step 6: Final answer
    x = 10,624.33

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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.