Home / 12,552.69-18,828.12-5,155.14

Finding the Fourth Proportional to 12,552.69, 18,828.12 and 5,155.14

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Solution

The fourth proportional to 12,552.69, 18,828.12 and 5,155.14 is: 7,732.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,552.69 : 18,828.12 = 5,155.14 : x
  2. Step 2: Convert to fraction form
    12,552.69/18,828.12 = 5,155.14/x
  3. Step 3: Cross multiply
    12,552.69x = 18,828.12 × 5,155.14
  4. Step 4: Simplify right side
    12,552.69x = 97,061,594.54
  5. Step 5: Solve for x
    x = 97,061,594.54/12,552.69
  6. Step 6: Final answer
    x = 7,732.33

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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.