Home / 15,526-21,431.28-9,238.24

Finding the Fourth Proportional to 15,526, 21,431.28 and 9,238.24

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Solution

The fourth proportional to 15,526, 21,431.28 and 9,238.24 is: 12,751.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,526 : 21,431.28 = 9,238.24 : x
  2. Step 2: Convert to fraction form
    15,526/21,431.28 = 9,238.24/x
  3. Step 3: Cross multiply
    15,526x = 21,431.28 × 9,238.24
  4. Step 4: Simplify right side
    15,526x = 197,987,308.15
  5. Step 5: Solve for x
    x = 197,987,308.15/15,526
  6. Step 6: Final answer
    x = 12,751.98

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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.