Home / 14,213.28-21,326.58-8,947.08

Finding the Fourth Proportional to 14,213.28, 21,326.58 and 8,947.08

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Solution

The fourth proportional to 14,213.28, 21,326.58 and 8,947.08 is: 13,424.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,213.28 : 21,326.58 = 8,947.08 : x
  2. Step 2: Convert to fraction form
    14,213.28/21,326.58 = 8,947.08/x
  3. Step 3: Cross multiply
    14,213.28x = 21,326.58 × 8,947.08
  4. Step 4: Simplify right side
    14,213.28x = 190,810,617.39
  5. Step 5: Solve for x
    x = 190,810,617.39/14,213.28
  6. Step 6: Final answer
    x = 13,424.81

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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.