Home / 9,419.16-14,128.20-3,178.92

Finding the Fourth Proportional to 9,419.16, 14,128.20 and 3,178.92

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Solution

The fourth proportional to 9,419.16, 14,128.20 and 3,178.92 is: 4,768.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419.16 : 14,128.20 = 3,178.92 : x
  2. Step 2: Convert to fraction form
    9,419.16/14,128.20 = 3,178.92/x
  3. Step 3: Cross multiply
    9,419.16x = 14,128.20 × 3,178.92
  4. Step 4: Simplify right side
    9,419.16x = 44,912,417.54
  5. Step 5: Solve for x
    x = 44,912,417.54/9,419.16
  6. Step 6: Final answer
    x = 4,768.20

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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.