Home / 13,005.69-19,508.55-5,219.97

Finding the Fourth Proportional to 13,005.69, 19,508.55 and 5,219.97

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Solution

The fourth proportional to 13,005.69, 19,508.55 and 5,219.97 is: 7,829.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,005.69 : 19,508.55 = 5,219.97 : x
  2. Step 2: Convert to fraction form
    13,005.69/19,508.55 = 5,219.97/x
  3. Step 3: Cross multiply
    13,005.69x = 19,508.55 × 5,219.97
  4. Step 4: Simplify right side
    13,005.69x = 101,834,045.74
  5. Step 5: Solve for x
    x = 101,834,045.74/13,005.69
  6. Step 6: Final answer
    x = 7,829.96

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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.