Home / 10,910.35-16,363.36-4,985.40

Finding the Fourth Proportional to 10,910.35, 16,363.36 and 4,985.40

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Solution

The fourth proportional to 10,910.35, 16,363.36 and 4,985.40 is: 7,477.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,910.35 : 16,363.36 = 4,985.40 : x
  2. Step 2: Convert to fraction form
    10,910.35/16,363.36 = 4,985.40/x
  3. Step 3: Cross multiply
    10,910.35x = 16,363.36 × 4,985.40
  4. Step 4: Simplify right side
    10,910.35x = 81,577,894.94
  5. Step 5: Solve for x
    x = 81,577,894.94/10,910.35
  6. Step 6: Final answer
    x = 7,477.11

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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.