Home / 8,970.96-13,460.04-3,131.64

Finding the Fourth Proportional to 8,970.96, 13,460.04 and 3,131.64

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Solution

The fourth proportional to 8,970.96, 13,460.04 and 3,131.64 is: 4,698.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.96 : 13,460.04 = 3,131.64 : x
  2. Step 2: Convert to fraction form
    8,970.96/13,460.04 = 3,131.64/x
  3. Step 3: Cross multiply
    8,970.96x = 13,460.04 × 3,131.64
  4. Step 4: Simplify right side
    8,970.96x = 42,151,999.67
  5. Step 5: Solve for x
    x = 42,151,999.67/8,970.96
  6. Step 6: Final answer
    x = 4,698.72

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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.