Home / 13,442.35-18,545.52-8,135.23

Finding the Fourth Proportional to 13,442.35, 18,545.52 and 8,135.23

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Solution

The fourth proportional to 13,442.35, 18,545.52 and 8,135.23 is: 11,223.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.35 : 18,545.52 = 8,135.23 : x
  2. Step 2: Convert to fraction form
    13,442.35/18,545.52 = 8,135.23/x
  3. Step 3: Cross multiply
    13,442.35x = 18,545.52 × 8,135.23
  4. Step 4: Simplify right side
    13,442.35x = 150,872,070.67
  5. Step 5: Solve for x
    x = 150,872,070.67/13,442.35
  6. Step 6: Final answer
    x = 11,223.64

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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.