Home / 14,885.36-20,542.44-8,918

Finding the Fourth Proportional to 14,885.36, 20,542.44 and 8,918

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Solution

The fourth proportional to 14,885.36, 20,542.44 and 8,918 is: 12,307.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,885.36 : 20,542.44 = 8,918 : x
  2. Step 2: Convert to fraction form
    14,885.36/20,542.44 = 8,918/x
  3. Step 3: Cross multiply
    14,885.36x = 20,542.44 × 8,918
  4. Step 4: Simplify right side
    14,885.36x = 183,197,479.92
  5. Step 5: Solve for x
    x = 183,197,479.92/14,885.36
  6. Step 6: Final answer
    x = 12,307.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.