Home / 10,104.21-15,158.73-3,178.71

Finding the Fourth Proportional to 10,104.21, 15,158.73 and 3,178.71

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Solution

The fourth proportional to 10,104.21, 15,158.73 and 3,178.71 is: 4,768.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,104.21 : 15,158.73 = 3,178.71 : x
  2. Step 2: Convert to fraction form
    10,104.21/15,158.73 = 3,178.71/x
  3. Step 3: Cross multiply
    10,104.21x = 15,158.73 × 3,178.71
  4. Step 4: Simplify right side
    10,104.21x = 48,185,206.64
  5. Step 5: Solve for x
    x = 48,185,206.64/10,104.21
  6. Step 6: Final answer
    x = 4,768.82

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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.