Home / 18,403.60-27,605.85-6,716.81

Finding the Fourth Proportional to 18,403.60, 27,605.85 and 6,716.81

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Solution

The fourth proportional to 18,403.60, 27,605.85 and 6,716.81 is: 10,075.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.60 : 27,605.85 = 6,716.81 : x
  2. Step 2: Convert to fraction form
    18,403.60/27,605.85 = 6,716.81/x
  3. Step 3: Cross multiply
    18,403.60x = 27,605.85 × 6,716.81
  4. Step 4: Simplify right side
    18,403.60x = 185,423,318.35
  5. Step 5: Solve for x
    x = 185,423,318.35/18,403.60
  6. Step 6: Final answer
    x = 10,075.38

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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.