Home / 15,436.04-21,301.66-8,362.48

Finding the Fourth Proportional to 15,436.04, 21,301.66 and 8,362.48

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Solution

The fourth proportional to 15,436.04, 21,301.66 and 8,362.48 is: 11,540.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,436.04 : 21,301.66 = 8,362.48 : x
  2. Step 2: Convert to fraction form
    15,436.04/21,301.66 = 8,362.48/x
  3. Step 3: Cross multiply
    15,436.04x = 21,301.66 × 8,362.48
  4. Step 4: Simplify right side
    15,436.04x = 178,134,705.72
  5. Step 5: Solve for x
    x = 178,134,705.72/15,436.04
  6. Step 6: Final answer
    x = 11,540.18

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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.