Home / 15,282.30-21,098.30-11,690.63

Finding the Fourth Proportional to 15,282.30, 21,098.30 and 11,690.63

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Solution

The fourth proportional to 15,282.30, 21,098.30 and 11,690.63 is: 16,139.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,282.30 : 21,098.30 = 11,690.63 : x
  2. Step 2: Convert to fraction form
    15,282.30/21,098.30 = 11,690.63/x
  3. Step 3: Cross multiply
    15,282.30x = 21,098.30 × 11,690.63
  4. Step 4: Simplify right side
    15,282.30x = 246,652,418.93
  5. Step 5: Solve for x
    x = 246,652,418.93/15,282.30
  6. Step 6: Final answer
    x = 16,139.74

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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.