Home / 14,472.45-21,690.79-8,543.32

Finding the Fourth Proportional to 14,472.45, 21,690.79 and 8,543.32

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Solution

The fourth proportional to 14,472.45, 21,690.79 and 8,543.32 is: 12,804.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,472.45 : 21,690.79 = 8,543.32 : x
  2. Step 2: Convert to fraction form
    14,472.45/21,690.79 = 8,543.32/x
  3. Step 3: Cross multiply
    14,472.45x = 21,690.79 × 8,543.32
  4. Step 4: Simplify right side
    14,472.45x = 185,311,284.44
  5. Step 5: Solve for x
    x = 185,311,284.44/14,472.45
  6. Step 6: Final answer
    x = 12,804.42

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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.