Home / 11,321.86-15,624.08-6,217.32

Finding the Fourth Proportional to 11,321.86, 15,624.08 and 6,217.32

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Solution

The fourth proportional to 11,321.86, 15,624.08 and 6,217.32 is: 8,579.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.86 : 15,624.08 = 6,217.32 : x
  2. Step 2: Convert to fraction form
    11,321.86/15,624.08 = 6,217.32/x
  3. Step 3: Cross multiply
    11,321.86x = 15,624.08 × 6,217.32
  4. Step 4: Simplify right side
    11,321.86x = 97,139,905.07
  5. Step 5: Solve for x
    x = 97,139,905.07/11,321.86
  6. Step 6: Final answer
    x = 8,579.85

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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.