Home / 11,150.76-15,386.30-6,434.14

Finding the Fourth Proportional to 11,150.76, 15,386.30 and 6,434.14

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Solution

The fourth proportional to 11,150.76, 15,386.30 and 6,434.14 is: 8,878.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,150.76 : 15,386.30 = 6,434.14 : x
  2. Step 2: Convert to fraction form
    11,150.76/15,386.30 = 6,434.14/x
  3. Step 3: Cross multiply
    11,150.76x = 15,386.30 × 6,434.14
  4. Step 4: Simplify right side
    11,150.76x = 98,997,608.28
  5. Step 5: Solve for x
    x = 98,997,608.28/11,150.76
  6. Step 6: Final answer
    x = 8,878.10

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Half scale
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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.