Home / 19,857.30-29,793.68-8,756.12

Finding the Fourth Proportional to 19,857.30, 29,793.68 and 8,756.12

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Solution

The fourth proportional to 19,857.30, 29,793.68 and 8,756.12 is: 13,137.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857.30 : 29,793.68 = 8,756.12 : x
  2. Step 2: Convert to fraction form
    19,857.30/29,793.68 = 8,756.12/x
  3. Step 3: Cross multiply
    19,857.30x = 29,793.68 × 8,756.12
  4. Step 4: Simplify right side
    19,857.30x = 260,877,037.32
  5. Step 5: Solve for x
    x = 260,877,037.32/19,857.30
  6. Step 6: Final answer
    x = 13,137.59

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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.