Home / 10,520.88-14,518.44-5,805.15

Finding the Fourth Proportional to 10,520.88, 14,518.44 and 5,805.15

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Solution

The fourth proportional to 10,520.88, 14,518.44 and 5,805.15 is: 8,010.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.88 : 14,518.44 = 5,805.15 : x
  2. Step 2: Convert to fraction form
    10,520.88/14,518.44 = 5,805.15/x
  3. Step 3: Cross multiply
    10,520.88x = 14,518.44 × 5,805.15
  4. Step 4: Simplify right side
    10,520.88x = 84,281,721.97
  5. Step 5: Solve for x
    x = 84,281,721.97/10,520.88
  6. Step 6: Final answer
    x = 8,010.90

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1.5x scale

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.