Home / 10,665.16-16,000.26-4,821.76

Finding the Fourth Proportional to 10,665.16, 16,000.26 and 4,821.76

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Solution

The fourth proportional to 10,665.16, 16,000.26 and 4,821.76 is: 7,233.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,665.16 : 16,000.26 = 4,821.76 : x
  2. Step 2: Convert to fraction form
    10,665.16/16,000.26 = 4,821.76/x
  3. Step 3: Cross multiply
    10,665.16x = 16,000.26 × 4,821.76
  4. Step 4: Simplify right side
    10,665.16x = 77,149,413.66
  5. Step 5: Solve for x
    x = 77,149,413.66/10,665.16
  6. Step 6: Final answer
    x = 7,233.78

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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.