Home / 10,999.64-15,178.05-6,220.23

Finding the Fourth Proportional to 10,999.64, 15,178.05 and 6,220.23

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Solution

The fourth proportional to 10,999.64, 15,178.05 and 6,220.23 is: 8,583.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.64 : 15,178.05 = 6,220.23 : x
  2. Step 2: Convert to fraction form
    10,999.64/15,178.05 = 6,220.23/x
  3. Step 3: Cross multiply
    10,999.64x = 15,178.05 × 6,220.23
  4. Step 4: Simplify right side
    10,999.64x = 94,410,930.85
  5. Step 5: Solve for x
    x = 94,410,930.85/10,999.64
  6. Step 6: Final answer
    x = 8,583.10

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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.