Home / 13,819.95-20,714.40-5,497.71

Finding the Fourth Proportional to 13,819.95, 20,714.40 and 5,497.71

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Solution

The fourth proportional to 13,819.95, 20,714.40 and 5,497.71 is: 8,240.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.95 : 20,714.40 = 5,497.71 : x
  2. Step 2: Convert to fraction form
    13,819.95/20,714.40 = 5,497.71/x
  3. Step 3: Cross multiply
    13,819.95x = 20,714.40 × 5,497.71
  4. Step 4: Simplify right side
    13,819.95x = 113,881,686.35
  5. Step 5: Solve for x
    x = 113,881,686.35/13,819.95
  6. Step 6: Final answer
    x = 8,240.38

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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.