Home / 15,267.96-21,070.14-8,553.27

Finding the Fourth Proportional to 15,267.96, 21,070.14 and 8,553.27

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Solution

The fourth proportional to 15,267.96, 21,070.14 and 8,553.27 is: 11,803.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,267.96 : 21,070.14 = 8,553.27 : x
  2. Step 2: Convert to fraction form
    15,267.96/21,070.14 = 8,553.27/x
  3. Step 3: Cross multiply
    15,267.96x = 21,070.14 × 8,553.27
  4. Step 4: Simplify right side
    15,267.96x = 180,218,596.36
  5. Step 5: Solve for x
    x = 180,218,596.36/15,267.96
  6. Step 6: Final answer
    x = 11,803.71

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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.