Home / 15,367.01-21,161.84-13,349.51

Finding the Fourth Proportional to 15,367.01, 21,161.84 and 13,349.51

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Solution

The fourth proportional to 15,367.01, 21,161.84 and 13,349.51 is: 18,383.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,367.01 : 21,161.84 = 13,349.51 : x
  2. Step 2: Convert to fraction form
    15,367.01/21,161.84 = 13,349.51/x
  3. Step 3: Cross multiply
    15,367.01x = 21,161.84 × 13,349.51
  4. Step 4: Simplify right side
    15,367.01x = 282,500,122.26
  5. Step 5: Solve for x
    x = 282,500,122.26/15,367.01
  6. Step 6: Final answer
    x = 18,383.54

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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.