Home / 14,276.80-19,709.76-8,612.56

Finding the Fourth Proportional to 14,276.80, 19,709.76 and 8,612.56

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Solution

The fourth proportional to 14,276.80, 19,709.76 and 8,612.56 is: 11,890.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,276.80 : 19,709.76 = 8,612.56 : x
  2. Step 2: Convert to fraction form
    14,276.80/19,709.76 = 8,612.56/x
  3. Step 3: Cross multiply
    14,276.80x = 19,709.76 × 8,612.56
  4. Step 4: Simplify right side
    14,276.80x = 169,751,490.59
  5. Step 5: Solve for x
    x = 169,751,490.59/14,276.80
  6. Step 6: Final answer
    x = 11,890.02

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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.