Home / 19,752.11-27,276.09-12,690.83

Finding the Fourth Proportional to 19,752.11, 27,276.09 and 12,690.83

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Solution

The fourth proportional to 19,752.11, 27,276.09 and 12,690.83 is: 17,525.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,752.11 : 27,276.09 = 12,690.83 : x
  2. Step 2: Convert to fraction form
    19,752.11/27,276.09 = 12,690.83/x
  3. Step 3: Cross multiply
    19,752.11x = 27,276.09 × 12,690.83
  4. Step 4: Simplify right side
    19,752.11x = 346,156,084.87
  5. Step 5: Solve for x
    x = 346,156,084.87/19,752.11
  6. Step 6: Final answer
    x = 17,525.02

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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.