Home / 12,947.91-19,392.66-9,069.63

Finding the Fourth Proportional to 12,947.91, 19,392.66 and 9,069.63

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Solution

The fourth proportional to 12,947.91, 19,392.66 and 9,069.63 is: 13,583.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947.91 : 19,392.66 = 9,069.63 : x
  2. Step 2: Convert to fraction form
    12,947.91/19,392.66 = 9,069.63/x
  3. Step 3: Cross multiply
    12,947.91x = 19,392.66 × 9,069.63
  4. Step 4: Simplify right side
    12,947.91x = 175,884,250.92
  5. Step 5: Solve for x
    x = 175,884,250.92/12,947.91
  6. Step 6: Final answer
    x = 13,583.99

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1.5x scale

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.