Home / 8,705.16-13,058.36-4,318.20

Finding the Fourth Proportional to 8,705.16, 13,058.36 and 4,318.20

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Solution

The fourth proportional to 8,705.16, 13,058.36 and 4,318.20 is: 6,477.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.16 : 13,058.36 = 4,318.20 : x
  2. Step 2: Convert to fraction form
    8,705.16/13,058.36 = 4,318.20/x
  3. Step 3: Cross multiply
    8,705.16x = 13,058.36 × 4,318.20
  4. Step 4: Simplify right side
    8,705.16x = 56,388,610.15
  5. Step 5: Solve for x
    x = 56,388,610.15/8,705.16
  6. Step 6: Final answer
    x = 6,477.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.