Home / 11,108.76-15,330.06-6,140.76

Finding the Fourth Proportional to 11,108.76, 15,330.06 and 6,140.76

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Solution

The fourth proportional to 11,108.76, 15,330.06 and 6,140.76 is: 8,474.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.76 : 15,330.06 = 6,140.76 : x
  2. Step 2: Convert to fraction form
    11,108.76/15,330.06 = 6,140.76/x
  3. Step 3: Cross multiply
    11,108.76x = 15,330.06 × 6,140.76
  4. Step 4: Simplify right side
    11,108.76x = 94,138,219.25
  5. Step 5: Solve for x
    x = 94,138,219.25/11,108.76
  6. Step 6: Final answer
    x = 8,474.23

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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.