Home / 8,491.86-11,720.15-4,716.24

Finding the Fourth Proportional to 8,491.86, 11,720.15 and 4,716.24

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Solution

The fourth proportional to 8,491.86, 11,720.15 and 4,716.24 is: 6,509.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491.86 : 11,720.15 = 4,716.24 : x
  2. Step 2: Convert to fraction form
    8,491.86/11,720.15 = 4,716.24/x
  3. Step 3: Cross multiply
    8,491.86x = 11,720.15 × 4,716.24
  4. Step 4: Simplify right side
    8,491.86x = 55,275,040.24
  5. Step 5: Solve for x
    x = 55,275,040.24/8,491.86
  6. Step 6: Final answer
    x = 6,509.18

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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.