Home / 13,246.38-19,879.56-7,005.47

Finding the Fourth Proportional to 13,246.38, 19,879.56 and 7,005.47

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Solution

The fourth proportional to 13,246.38, 19,879.56 and 7,005.47 is: 10,513.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.38 : 19,879.56 = 7,005.47 : x
  2. Step 2: Convert to fraction form
    13,246.38/19,879.56 = 7,005.47/x
  3. Step 3: Cross multiply
    13,246.38x = 19,879.56 × 7,005.47
  4. Step 4: Simplify right side
    13,246.38x = 139,265,561.80
  5. Step 5: Solve for x
    x = 139,265,561.80/13,246.38
  6. Step 6: Final answer
    x = 10,513.48

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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.