Home / 11,160.77-15,397.48-6,378.15

Finding the Fourth Proportional to 11,160.77, 15,397.48 and 6,378.15

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Solution

The fourth proportional to 11,160.77, 15,397.48 and 6,378.15 is: 8,799.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,160.77 : 15,397.48 = 6,378.15 : x
  2. Step 2: Convert to fraction form
    11,160.77/15,397.48 = 6,378.15/x
  3. Step 3: Cross multiply
    11,160.77x = 15,397.48 × 6,378.15
  4. Step 4: Simplify right side
    11,160.77x = 98,207,352.60
  5. Step 5: Solve for x
    x = 98,207,352.60/11,160.77
  6. Step 6: Final answer
    x = 8,799.34

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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.