Home / 13,048.74-18,006.03-7,382.79

Finding the Fourth Proportional to 13,048.74, 18,006.03 and 7,382.79

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Solution

The fourth proportional to 13,048.74, 18,006.03 and 7,382.79 is: 10,187.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,048.74 : 18,006.03 = 7,382.79 : x
  2. Step 2: Convert to fraction form
    13,048.74/18,006.03 = 7,382.79/x
  3. Step 3: Cross multiply
    13,048.74x = 18,006.03 × 7,382.79
  4. Step 4: Simplify right side
    13,048.74x = 132,934,738.22
  5. Step 5: Solve for x
    x = 132,934,738.22/13,048.74
  6. Step 6: Final answer
    x = 10,187.55

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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.