Home / 8,430.21-12,646.80-3,497.31

Finding the Fourth Proportional to 8,430.21, 12,646.80 and 3,497.31

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Solution

The fourth proportional to 8,430.21, 12,646.80 and 3,497.31 is: 5,246.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.21 : 12,646.80 = 3,497.31 : x
  2. Step 2: Convert to fraction form
    8,430.21/12,646.80 = 3,497.31/x
  3. Step 3: Cross multiply
    8,430.21x = 12,646.80 × 3,497.31
  4. Step 4: Simplify right side
    8,430.21x = 44,229,780.11
  5. Step 5: Solve for x
    x = 44,229,780.11/8,430.21
  6. Step 6: Final answer
    x = 5,246.58

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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.