Home / 14,511.68-21,796.32-12,430.88

Finding the Fourth Proportional to 14,511.68, 21,796.32 and 12,430.88

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Solution

The fourth proportional to 14,511.68, 21,796.32 and 12,430.88 is: 18,670.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,511.68 : 21,796.32 = 12,430.88 : x
  2. Step 2: Convert to fraction form
    14,511.68/21,796.32 = 12,430.88/x
  3. Step 3: Cross multiply
    14,511.68x = 21,796.32 × 12,430.88
  4. Step 4: Simplify right side
    14,511.68x = 270,947,438.36
  5. Step 5: Solve for x
    x = 270,947,438.36/14,511.68
  6. Step 6: Final answer
    x = 18,670.99

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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.