Home / 9,153.80-13,730.70-8,686.33

Finding the Fourth Proportional to 9,153.80, 13,730.70 and 8,686.33

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Solution

The fourth proportional to 9,153.80, 13,730.70 and 8,686.33 is: 13,029.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153.80 : 13,730.70 = 8,686.33 : x
  2. Step 2: Convert to fraction form
    9,153.80/13,730.70 = 8,686.33/x
  3. Step 3: Cross multiply
    9,153.80x = 13,730.70 × 8,686.33
  4. Step 4: Simplify right side
    9,153.80x = 119,269,357.00
  5. Step 5: Solve for x
    x = 119,269,357.00/9,153.80
  6. Step 6: Final answer
    x = 13,029.49

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Similar ratio
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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.