Home / 19,872.77-29,809.15-8,790.75

Finding the Fourth Proportional to 19,872.77, 29,809.15 and 8,790.75

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Solution

The fourth proportional to 19,872.77, 29,809.15 and 8,790.75 is: 13,186.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.77 : 29,809.15 = 8,790.75 : x
  2. Step 2: Convert to fraction form
    19,872.77/29,809.15 = 8,790.75/x
  3. Step 3: Cross multiply
    19,872.77x = 29,809.15 × 8,790.75
  4. Step 4: Simplify right side
    19,872.77x = 262,044,763.39
  5. Step 5: Solve for x
    x = 262,044,763.39/19,872.77
  6. Step 6: Final answer
    x = 13,186.13

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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.