Home / 15,274.38-21,080.00-8,900.63

Finding the Fourth Proportional to 15,274.38, 21,080.00 and 8,900.63

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Solution

The fourth proportional to 15,274.38, 21,080.00 and 8,900.63 is: 12,283.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,274.38 : 21,080.00 = 8,900.63 : x
  2. Step 2: Convert to fraction form
    15,274.38/21,080.00 = 8,900.63/x
  3. Step 3: Cross multiply
    15,274.38x = 21,080.00 × 8,900.63
  4. Step 4: Simplify right side
    15,274.38x = 187,625,197.25
  5. Step 5: Solve for x
    x = 187,625,197.25/15,274.38
  6. Step 6: Final answer
    x = 12,283.65

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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.