Home / 13,048.49-18,005.68-7,382.54

Finding the Fourth Proportional to 13,048.49, 18,005.68 and 7,382.54

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Solution

The fourth proportional to 13,048.49, 18,005.68 and 7,382.54 is: 10,187.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,048.49 : 18,005.68 = 7,382.54 : x
  2. Step 2: Convert to fraction form
    13,048.49/18,005.68 = 7,382.54/x
  3. Step 3: Cross multiply
    13,048.49x = 18,005.68 × 7,382.54
  4. Step 4: Simplify right side
    13,048.49x = 132,927,652.83
  5. Step 5: Solve for x
    x = 132,927,652.83/13,048.49
  6. Step 6: Final answer
    x = 10,187.21

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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.