Home / 13,590.34-18,737.31-8,801.82

Finding the Fourth Proportional to 13,590.34, 18,737.31 and 8,801.82

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Solution

The fourth proportional to 13,590.34, 18,737.31 and 8,801.82 is: 12,135.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.34 : 18,737.31 = 8,801.82 : x
  2. Step 2: Convert to fraction form
    13,590.34/18,737.31 = 8,801.82/x
  3. Step 3: Cross multiply
    13,590.34x = 18,737.31 × 8,801.82
  4. Step 4: Simplify right side
    13,590.34x = 164,922,385.90
  5. Step 5: Solve for x
    x = 164,922,385.90/13,590.34
  6. Step 6: Final answer
    x = 12,135.27

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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.