Home / 13,947.20-19,246.56-8,904.32

Finding the Fourth Proportional to 13,947.20, 19,246.56 and 8,904.32

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Solution

The fourth proportional to 13,947.20, 19,246.56 and 8,904.32 is: 12,287.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.20 : 19,246.56 = 8,904.32 : x
  2. Step 2: Convert to fraction form
    13,947.20/19,246.56 = 8,904.32/x
  3. Step 3: Cross multiply
    13,947.20x = 19,246.56 × 8,904.32
  4. Step 4: Simplify right side
    13,947.20x = 171,377,529.14
  5. Step 5: Solve for x
    x = 171,377,529.14/13,947.20
  6. Step 6: Final answer
    x = 12,287.59

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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.