Home / 14,169.87-21,225.64-8,312.36

Finding the Fourth Proportional to 14,169.87, 21,225.64 and 8,312.36

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Solution

The fourth proportional to 14,169.87, 21,225.64 and 8,312.36 is: 12,451.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,169.87 : 21,225.64 = 8,312.36 : x
  2. Step 2: Convert to fraction form
    14,169.87/21,225.64 = 8,312.36/x
  3. Step 3: Cross multiply
    14,169.87x = 21,225.64 × 8,312.36
  4. Step 4: Simplify right side
    14,169.87x = 176,435,160.91
  5. Step 5: Solve for x
    x = 176,435,160.91/14,169.87
  6. Step 6: Final answer
    x = 12,451.43

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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.