Home / 10,220.40-14,104.80-5,683.32

Finding the Fourth Proportional to 10,220.40, 14,104.80 and 5,683.32

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Solution

The fourth proportional to 10,220.40, 14,104.80 and 5,683.32 is: 7,843.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,220.40 : 14,104.80 = 5,683.32 : x
  2. Step 2: Convert to fraction form
    10,220.40/14,104.80 = 5,683.32/x
  3. Step 3: Cross multiply
    10,220.40x = 14,104.80 × 5,683.32
  4. Step 4: Simplify right side
    10,220.40x = 80,162,091.94
  5. Step 5: Solve for x
    x = 80,162,091.94/10,220.40
  6. Step 6: Final answer
    x = 7,843.34

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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.