Home / 11,131.47-16,670.70-6,441.59

Finding the Fourth Proportional to 11,131.47, 16,670.70 and 6,441.59

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Solution

The fourth proportional to 11,131.47, 16,670.70 and 6,441.59 is: 9,647.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.47 : 16,670.70 = 6,441.59 : x
  2. Step 2: Convert to fraction form
    11,131.47/16,670.70 = 6,441.59/x
  3. Step 3: Cross multiply
    11,131.47x = 16,670.70 × 6,441.59
  4. Step 4: Simplify right side
    11,131.47x = 107,385,831.93
  5. Step 5: Solve for x
    x = 107,385,831.93/11,131.47
  6. Step 6: Final answer
    x = 9,647.05

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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.