Home / 11,109.29-15,334.67-6,395.45

Finding the Fourth Proportional to 11,109.29, 15,334.67 and 6,395.45

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Solution

The fourth proportional to 11,109.29, 15,334.67 and 6,395.45 is: 8,827.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.29 : 15,334.67 = 6,395.45 : x
  2. Step 2: Convert to fraction form
    11,109.29/15,334.67 = 6,395.45/x
  3. Step 3: Cross multiply
    11,109.29x = 15,334.67 × 6,395.45
  4. Step 4: Simplify right side
    11,109.29x = 98,072,054.57
  5. Step 5: Solve for x
    x = 98,072,054.57/11,109.29
  6. Step 6: Final answer
    x = 8,827.94

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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.