Home / 14,558.85-21,838.40-7,981.44

Finding the Fourth Proportional to 14,558.85, 21,838.40 and 7,981.44

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Solution

The fourth proportional to 14,558.85, 21,838.40 and 7,981.44 is: 11,972.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,558.85 : 21,838.40 = 7,981.44 : x
  2. Step 2: Convert to fraction form
    14,558.85/21,838.40 = 7,981.44/x
  3. Step 3: Cross multiply
    14,558.85x = 21,838.40 × 7,981.44
  4. Step 4: Simplify right side
    14,558.85x = 174,301,879.30
  5. Step 5: Solve for x
    x = 174,301,879.30/14,558.85
  6. Step 6: Final answer
    x = 11,972.23

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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.