Home / 8,220.16-11,342.70-4,635.10

Finding the Fourth Proportional to 8,220.16, 11,342.70 and 4,635.10

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Solution

The fourth proportional to 8,220.16, 11,342.70 and 4,635.10 is: 6,395.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.16 : 11,342.70 = 4,635.10 : x
  2. Step 2: Convert to fraction form
    8,220.16/11,342.70 = 4,635.10/x
  3. Step 3: Cross multiply
    8,220.16x = 11,342.70 × 4,635.10
  4. Step 4: Simplify right side
    8,220.16x = 52,574,548.77
  5. Step 5: Solve for x
    x = 52,574,548.77/8,220.16
  6. Step 6: Final answer
    x = 6,395.81

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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.