Home / 15,418.24-21,255.99-9,750.15

Finding the Fourth Proportional to 15,418.24, 21,255.99 and 9,750.15

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Solution

The fourth proportional to 15,418.24, 21,255.99 and 9,750.15 is: 13,441.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.24 : 21,255.99 = 9,750.15 : x
  2. Step 2: Convert to fraction form
    15,418.24/21,255.99 = 9,750.15/x
  3. Step 3: Cross multiply
    15,418.24x = 21,255.99 × 9,750.15
  4. Step 4: Simplify right side
    15,418.24x = 207,249,015.12
  5. Step 5: Solve for x
    x = 207,249,015.12/15,418.24
  6. Step 6: Final answer
    x = 13,441.81

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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.