Home / 19,818.10-27,348.87-10,865.98

Finding the Fourth Proportional to 19,818.10, 27,348.87 and 10,865.98

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Solution

The fourth proportional to 19,818.10, 27,348.87 and 10,865.98 is: 14,994.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.10 : 27,348.87 = 10,865.98 : x
  2. Step 2: Convert to fraction form
    19,818.10/27,348.87 = 10,865.98/x
  3. Step 3: Cross multiply
    19,818.10x = 27,348.87 × 10,865.98
  4. Step 4: Simplify right side
    19,818.10x = 297,172,274.44
  5. Step 5: Solve for x
    x = 297,172,274.44/19,818.10
  6. Step 6: Final answer
    x = 14,994.99

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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.