Home / 14,187.31-21,280.90-4,326.56

Finding the Fourth Proportional to 14,187.31, 21,280.90 and 4,326.56

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Solution

The fourth proportional to 14,187.31, 21,280.90 and 4,326.56 is: 6,489.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.31 : 21,280.90 = 4,326.56 : x
  2. Step 2: Convert to fraction form
    14,187.31/21,280.90 = 4,326.56/x
  3. Step 3: Cross multiply
    14,187.31x = 21,280.90 × 4,326.56
  4. Step 4: Simplify right side
    14,187.31x = 92,073,048.32
  5. Step 5: Solve for x
    x = 92,073,048.32/14,187.31
  6. Step 6: Final answer
    x = 6,489.82

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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.