Home / 10,003.86-13,811.13-6,651.18

Finding the Fourth Proportional to 10,003.86, 13,811.13 and 6,651.18

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Solution

The fourth proportional to 10,003.86, 13,811.13 and 6,651.18 is: 9,182.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,003.86 : 13,811.13 = 6,651.18 : x
  2. Step 2: Convert to fraction form
    10,003.86/13,811.13 = 6,651.18/x
  3. Step 3: Cross multiply
    10,003.86x = 13,811.13 × 6,651.18
  4. Step 4: Simplify right side
    10,003.86x = 91,860,311.63
  5. Step 5: Solve for x
    x = 91,860,311.63/10,003.86
  6. Step 6: Final answer
    x = 9,182.49

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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.