Home / 15,399.06-21,249.54-9,024.90

Finding the Fourth Proportional to 15,399.06, 21,249.54 and 9,024.90

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Solution

The fourth proportional to 15,399.06, 21,249.54 and 9,024.90 is: 12,453.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,399.06 : 21,249.54 = 9,024.90 : x
  2. Step 2: Convert to fraction form
    15,399.06/21,249.54 = 9,024.90/x
  3. Step 3: Cross multiply
    15,399.06x = 21,249.54 × 9,024.90
  4. Step 4: Simplify right side
    15,399.06x = 191,774,973.55
  5. Step 5: Solve for x
    x = 191,774,973.55/15,399.06
  6. Step 6: Final answer
    x = 12,453.68

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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.