Home / 8,971.20-13,457.76-3,132

Finding the Fourth Proportional to 8,971.20, 13,457.76 and 3,132

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Solution

The fourth proportional to 8,971.20, 13,457.76 and 3,132 is: 4,698.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971.20 : 13,457.76 = 3,132 : x
  2. Step 2: Convert to fraction form
    8,971.20/13,457.76 = 3,132/x
  3. Step 3: Cross multiply
    8,971.20x = 13,457.76 × 3,132
  4. Step 4: Simplify right side
    8,971.20x = 42,149,704.32
  5. Step 5: Solve for x
    x = 42,149,704.32/8,971.20
  6. Step 6: Final answer
    x = 4,698.34

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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.