Home / 13,276.46-18,323.52-7,974.20

Finding the Fourth Proportional to 13,276.46, 18,323.52 and 7,974.20

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Solution

The fourth proportional to 13,276.46, 18,323.52 and 7,974.20 is: 11,005.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.46 : 18,323.52 = 7,974.20 : x
  2. Step 2: Convert to fraction form
    13,276.46/18,323.52 = 7,974.20/x
  3. Step 3: Cross multiply
    13,276.46x = 18,323.52 × 7,974.20
  4. Step 4: Simplify right side
    13,276.46x = 146,115,281.70
  5. Step 5: Solve for x
    x = 146,115,281.70/13,276.46
  6. Step 6: Final answer
    x = 11,005.59

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1.5x scale

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.