Home / 13,947.12-19,246.82-7,980.26

Finding the Fourth Proportional to 13,947.12, 19,246.82 and 7,980.26

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Solution

The fourth proportional to 13,947.12, 19,246.82 and 7,980.26 is: 11,012.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.12 : 19,246.82 = 7,980.26 : x
  2. Step 2: Convert to fraction form
    13,947.12/19,246.82 = 7,980.26/x
  3. Step 3: Cross multiply
    13,947.12x = 19,246.82 × 7,980.26
  4. Step 4: Simplify right side
    13,947.12x = 153,594,491.64
  5. Step 5: Solve for x
    x = 153,594,491.64/13,947.12
  6. Step 6: Final answer
    x = 11,012.63

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Similar ratio
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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.