Home / 14,103.45-21,159.60-8,487.25

Finding the Fourth Proportional to 14,103.45, 21,159.60 and 8,487.25

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Solution

The fourth proportional to 14,103.45, 21,159.60 and 8,487.25 is: 12,733.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,103.45 : 21,159.60 = 8,487.25 : x
  2. Step 2: Convert to fraction form
    14,103.45/21,159.60 = 8,487.25/x
  3. Step 3: Cross multiply
    14,103.45x = 21,159.60 × 8,487.25
  4. Step 4: Simplify right side
    14,103.45x = 179,586,730.37
  5. Step 5: Solve for x
    x = 179,586,730.37/14,103.45
  6. Step 6: Final answer
    x = 12,733.53

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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.