Home / 13,112.34-18,092.23-8,864.07

Finding the Fourth Proportional to 13,112.34, 18,092.23 and 8,864.07

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Solution

The fourth proportional to 13,112.34, 18,092.23 and 8,864.07 is: 12,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.34 : 18,092.23 = 8,864.07 : x
  2. Step 2: Convert to fraction form
    13,112.34/18,092.23 = 8,864.07/x
  3. Step 3: Cross multiply
    13,112.34x = 18,092.23 × 8,864.07
  4. Step 4: Simplify right side
    13,112.34x = 160,370,793.18
  5. Step 5: Solve for x
    x = 160,370,793.18/13,112.34
  6. Step 6: Final answer
    x = 12,230.52

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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.