Home / 13,298.20-18,351.03-7,993.51

Finding the Fourth Proportional to 13,298.20, 18,351.03 and 7,993.51

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Solution

The fourth proportional to 13,298.20, 18,351.03 and 7,993.51 is: 11,030.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.20 : 18,351.03 = 7,993.51 : x
  2. Step 2: Convert to fraction form
    13,298.20/18,351.03 = 7,993.51/x
  3. Step 3: Cross multiply
    13,298.20x = 18,351.03 × 7,993.51
  4. Step 4: Simplify right side
    13,298.20x = 146,689,141.82
  5. Step 5: Solve for x
    x = 146,689,141.82/13,298.20
  6. Step 6: Final answer
    x = 11,030.75

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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.