Home / 11,360.08-15,679.10-6,886.28

Finding the Fourth Proportional to 11,360.08, 15,679.10 and 6,886.28

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Solution

The fourth proportional to 11,360.08, 15,679.10 and 6,886.28 is: 9,504.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,360.08 : 15,679.10 = 6,886.28 : x
  2. Step 2: Convert to fraction form
    11,360.08/15,679.10 = 6,886.28/x
  3. Step 3: Cross multiply
    11,360.08x = 15,679.10 × 6,886.28
  4. Step 4: Simplify right side
    11,360.08x = 107,970,729.16
  5. Step 5: Solve for x
    x = 107,970,729.16/11,360.08
  6. Step 6: Final answer
    x = 9,504.40

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Half 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.