Home / 13,424.54-18,530.84-11,528.51

Finding the Fourth Proportional to 13,424.54, 18,530.84 and 11,528.51

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Solution

The fourth proportional to 13,424.54, 18,530.84 and 11,528.51 is: 15,913.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.54 : 18,530.84 = 11,528.51 : x
  2. Step 2: Convert to fraction form
    13,424.54/18,530.84 = 11,528.51/x
  3. Step 3: Cross multiply
    13,424.54x = 18,530.84 × 11,528.51
  4. Step 4: Simplify right side
    13,424.54x = 213,632,974.25
  5. Step 5: Solve for x
    x = 213,632,974.25/13,424.54
  6. Step 6: Final answer
    x = 15,913.62

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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.