Home / 18,688.22-28,033.10-8,702.27

Finding the Fourth Proportional to 18,688.22, 28,033.10 and 8,702.27

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Solution

The fourth proportional to 18,688.22, 28,033.10 and 8,702.27 is: 13,053.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.22 : 28,033.10 = 8,702.27 : x
  2. Step 2: Convert to fraction form
    18,688.22/28,033.10 = 8,702.27/x
  3. Step 3: Cross multiply
    18,688.22x = 28,033.10 × 8,702.27
  4. Step 4: Simplify right side
    18,688.22x = 243,951,561.63
  5. Step 5: Solve for x
    x = 243,951,561.63/18,688.22
  6. Step 6: Final answer
    x = 13,053.76

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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.