Home / 10,178.70-15,269.94-3,603.12

Finding the Fourth Proportional to 10,178.70, 15,269.94 and 3,603.12

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Solution

The fourth proportional to 10,178.70, 15,269.94 and 3,603.12 is: 5,405.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.70 : 15,269.94 = 3,603.12 : x
  2. Step 2: Convert to fraction form
    10,178.70/15,269.94 = 3,603.12/x
  3. Step 3: Cross multiply
    10,178.70x = 15,269.94 × 3,603.12
  4. Step 4: Simplify right side
    10,178.70x = 55,019,426.21
  5. Step 5: Solve for x
    x = 55,019,426.21/10,178.70
  6. Step 6: Final answer
    x = 5,405.35

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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.