Home / 15,436.08-21,301.85-8,362.51

Finding the Fourth Proportional to 15,436.08, 21,301.85 and 8,362.51

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Solution

The fourth proportional to 15,436.08, 21,301.85 and 8,362.51 is: 11,540.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,436.08 : 21,301.85 = 8,362.51 : x
  2. Step 2: Convert to fraction form
    15,436.08/21,301.85 = 8,362.51/x
  3. Step 3: Cross multiply
    15,436.08x = 21,301.85 × 8,362.51
  4. Step 4: Simplify right side
    15,436.08x = 178,136,901.30
  5. Step 5: Solve for x
    x = 178,136,901.30/15,436.08
  6. Step 6: Final answer
    x = 11,540.29

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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.