Home / 13,313.46-19,939.06-10,521.39

Finding the Fourth Proportional to 13,313.46, 19,939.06 and 10,521.39

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Solution

The fourth proportional to 13,313.46, 19,939.06 and 10,521.39 is: 15,757.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.46 : 19,939.06 = 10,521.39 : x
  2. Step 2: Convert to fraction form
    13,313.46/19,939.06 = 10,521.39/x
  3. Step 3: Cross multiply
    13,313.46x = 19,939.06 × 10,521.39
  4. Step 4: Simplify right side
    13,313.46x = 209,786,714.42
  5. Step 5: Solve for x
    x = 209,786,714.42/13,313.46
  6. Step 6: Final answer
    x = 15,757.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.