Home / 13,048.51-18,007.25-7,743.36

Finding the Fourth Proportional to 13,048.51, 18,007.25 and 7,743.36

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Solution

The fourth proportional to 13,048.51, 18,007.25 and 7,743.36 is: 10,686.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,048.51 : 18,007.25 = 7,743.36 : x
  2. Step 2: Convert to fraction form
    13,048.51/18,007.25 = 7,743.36/x
  3. Step 3: Cross multiply
    13,048.51x = 18,007.25 × 7,743.36
  4. Step 4: Simplify right side
    13,048.51x = 139,436,619.36
  5. Step 5: Solve for x
    x = 139,436,619.36/13,048.51
  6. Step 6: Final answer
    x = 10,686.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.