Home / 15,553.53-21,464.28-9,589.14

Finding the Fourth Proportional to 15,553.53, 21,464.28 and 9,589.14

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Solution

The fourth proportional to 15,553.53, 21,464.28 and 9,589.14 is: 13,233.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.53 : 21,464.28 = 9,589.14 : x
  2. Step 2: Convert to fraction form
    15,553.53/21,464.28 = 9,589.14/x
  3. Step 3: Cross multiply
    15,553.53x = 21,464.28 × 9,589.14
  4. Step 4: Simplify right side
    15,553.53x = 205,823,985.92
  5. Step 5: Solve for x
    x = 205,823,985.92/15,553.53
  6. Step 6: Final answer
    x = 13,233.27

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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.