Home / 15,232.48-21,021.54-8,518.20

Finding the Fourth Proportional to 15,232.48, 21,021.54 and 8,518.20

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Solution

The fourth proportional to 15,232.48, 21,021.54 and 8,518.20 is: 11,755.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,232.48 : 21,021.54 = 8,518.20 : x
  2. Step 2: Convert to fraction form
    15,232.48/21,021.54 = 8,518.20/x
  3. Step 3: Cross multiply
    15,232.48x = 21,021.54 × 8,518.20
  4. Step 4: Simplify right side
    15,232.48x = 179,065,682.03
  5. Step 5: Solve for x
    x = 179,065,682.03/15,232.48
  6. Step 6: Final answer
    x = 11,755.52

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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.