Home / 8,438.08-11,644.80-4,712

Finding the Fourth Proportional to 8,438.08, 11,644.80 and 4,712

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Solution

The fourth proportional to 8,438.08, 11,644.80 and 4,712 is: 6,502.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.08 : 11,644.80 = 4,712 : x
  2. Step 2: Convert to fraction form
    8,438.08/11,644.80 = 4,712/x
  3. Step 3: Cross multiply
    8,438.08x = 11,644.80 × 4,712
  4. Step 4: Simplify right side
    8,438.08x = 54,870,297.60
  5. Step 5: Solve for x
    x = 54,870,297.60/8,438.08
  6. Step 6: Final answer
    x = 6,502.70

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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.