Home / 13,351.76-18,424.01-7,382.46

Finding the Fourth Proportional to 13,351.76, 18,424.01 and 7,382.46

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Solution

The fourth proportional to 13,351.76, 18,424.01 and 7,382.46 is: 10,187.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.76 : 18,424.01 = 7,382.46 : x
  2. Step 2: Convert to fraction form
    13,351.76/18,424.01 = 7,382.46/x
  3. Step 3: Cross multiply
    13,351.76x = 18,424.01 × 7,382.46
  4. Step 4: Simplify right side
    13,351.76x = 136,014,479.95
  5. Step 5: Solve for x
    x = 136,014,479.95/13,351.76
  6. Step 6: Final answer
    x = 10,187.01

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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.