Home / 15,247.37-21,039.36-9,949.34

Finding the Fourth Proportional to 15,247.37, 21,039.36 and 9,949.34

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Solution

The fourth proportional to 15,247.37, 21,039.36 and 9,949.34 is: 13,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,247.37 : 21,039.36 = 9,949.34 : x
  2. Step 2: Convert to fraction form
    15,247.37/21,039.36 = 9,949.34/x
  3. Step 3: Cross multiply
    15,247.37x = 21,039.36 × 9,949.34
  4. Step 4: Simplify right side
    15,247.37x = 209,327,746.02
  5. Step 5: Solve for x
    x = 209,327,746.02/15,247.37
  6. Step 6: Final answer
    x = 13,728.78

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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.