Home / 10,354.19-15,529.66-3,428.69

Finding the Fourth Proportional to 10,354.19, 15,529.66 and 3,428.69

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Solution

The fourth proportional to 10,354.19, 15,529.66 and 3,428.69 is: 5,142.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.19 : 15,529.66 = 3,428.69 : x
  2. Step 2: Convert to fraction form
    10,354.19/15,529.66 = 3,428.69/x
  3. Step 3: Cross multiply
    10,354.19x = 15,529.66 × 3,428.69
  4. Step 4: Simplify right side
    10,354.19x = 53,246,303.73
  5. Step 5: Solve for x
    x = 53,246,303.73/10,354.19
  6. Step 6: Final answer
    x = 5,142.49

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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.