Home / 19,872.96-27,416.82-12,803.50

Finding the Fourth Proportional to 19,872.96, 27,416.82 and 12,803.50

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Solution

The fourth proportional to 19,872.96, 27,416.82 and 12,803.50 is: 17,663.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.96 : 27,416.82 = 12,803.50 : x
  2. Step 2: Convert to fraction form
    19,872.96/27,416.82 = 12,803.50/x
  3. Step 3: Cross multiply
    19,872.96x = 27,416.82 × 12,803.50
  4. Step 4: Simplify right side
    19,872.96x = 351,031,254.87
  5. Step 5: Solve for x
    x = 351,031,254.87/19,872.96
  6. Step 6: Final answer
    x = 17,663.76

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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.