Home / 9,720.30-14,580.92-3,147

Finding the Fourth Proportional to 9,720.30, 14,580.92 and 3,147

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Solution

The fourth proportional to 9,720.30, 14,580.92 and 3,147 is: 4,720.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720.30 : 14,580.92 = 3,147 : x
  2. Step 2: Convert to fraction form
    9,720.30/14,580.92 = 3,147/x
  3. Step 3: Cross multiply
    9,720.30x = 14,580.92 × 3,147
  4. Step 4: Simplify right side
    9,720.30x = 45,886,155.24
  5. Step 5: Solve for x
    x = 45,886,155.24/9,720.30
  6. Step 6: Final answer
    x = 4,720.65

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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.