Home / 19,864.32-27,408.32-12,316.80

Finding the Fourth Proportional to 19,864.32, 27,408.32 and 12,316.80

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Solution

The fourth proportional to 19,864.32, 27,408.32 and 12,316.80 is: 16,994.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.32 : 27,408.32 = 12,316.80 : x
  2. Step 2: Convert to fraction form
    19,864.32/27,408.32 = 12,316.80/x
  3. Step 3: Cross multiply
    19,864.32x = 27,408.32 × 12,316.80
  4. Step 4: Simplify right side
    19,864.32x = 337,582,795.78
  5. Step 5: Solve for x
    x = 337,582,795.78/19,864.32
  6. Step 6: Final answer
    x = 16,994.43

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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.