Home / 14,508.36-21,728.88-12,376.80

Finding the Fourth Proportional to 14,508.36, 21,728.88 and 12,376.80

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Solution

The fourth proportional to 14,508.36, 21,728.88 and 12,376.80 is: 18,536.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,508.36 : 21,728.88 = 12,376.80 : x
  2. Step 2: Convert to fraction form
    14,508.36/21,728.88 = 12,376.80/x
  3. Step 3: Cross multiply
    14,508.36x = 21,728.88 × 12,376.80
  4. Step 4: Simplify right side
    14,508.36x = 268,934,001.98
  5. Step 5: Solve for x
    x = 268,934,001.98/14,508.36
  6. Step 6: Final answer
    x = 18,536.49

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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.