Home / 13,313.44-19,868.89-11,837.20

Finding the Fourth Proportional to 13,313.44, 19,868.89 and 11,837.20

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Solution

The fourth proportional to 13,313.44, 19,868.89 and 11,837.20 is: 17,665.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.44 : 19,868.89 = 11,837.20 : x
  2. Step 2: Convert to fraction form
    13,313.44/19,868.89 = 11,837.20/x
  3. Step 3: Cross multiply
    13,313.44x = 19,868.89 × 11,837.20
  4. Step 4: Simplify right side
    13,313.44x = 235,192,024.71
  5. Step 5: Solve for x
    x = 235,192,024.71/13,313.44
  6. Step 6: Final answer
    x = 17,665.76

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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.