Home / 13,943.32-19,250.80-8,643.76

Finding the Fourth Proportional to 13,943.32, 19,250.80 and 8,643.76

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Solution

The fourth proportional to 13,943.32, 19,250.80 and 8,643.76 is: 11,933.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.32 : 19,250.80 = 8,643.76 : x
  2. Step 2: Convert to fraction form
    13,943.32/19,250.80 = 8,643.76/x
  3. Step 3: Cross multiply
    13,943.32x = 19,250.80 × 8,643.76
  4. Step 4: Simplify right side
    13,943.32x = 166,399,295.01
  5. Step 5: Solve for x
    x = 166,399,295.01/13,943.32
  6. Step 6: Final answer
    x = 11,933.98

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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.