Home / 11,328.86-15,638.19-7,550.65

Finding the Fourth Proportional to 11,328.86, 15,638.19 and 7,550.65

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Solution

The fourth proportional to 11,328.86, 15,638.19 and 7,550.65 is: 10,422.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.86 : 15,638.19 = 7,550.65 : x
  2. Step 2: Convert to fraction form
    11,328.86/15,638.19 = 7,550.65/x
  3. Step 3: Cross multiply
    11,328.86x = 15,638.19 × 7,550.65
  4. Step 4: Simplify right side
    11,328.86x = 118,078,499.32
  5. Step 5: Solve for x
    x = 118,078,499.32/11,328.86
  6. Step 6: Final answer
    x = 10,422.81

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Double scale
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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.