Home / 13,610.17-20,313.83-13,278.07

Finding the Fourth Proportional to 13,610.17, 20,313.83 and 13,278.07

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Solution

The fourth proportional to 13,610.17, 20,313.83 and 13,278.07 is: 19,818.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.17 : 20,313.83 = 13,278.07 : x
  2. Step 2: Convert to fraction form
    13,610.17/20,313.83 = 13,278.07/x
  3. Step 3: Cross multiply
    13,610.17x = 20,313.83 × 13,278.07
  4. Step 4: Simplify right side
    13,610.17x = 269,728,339.53
  5. Step 5: Solve for x
    x = 269,728,339.53/13,610.17
  6. Step 6: Final answer
    x = 19,818.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.