Home / 11,123.22-15,349.59-6,406.86

Finding the Fourth Proportional to 11,123.22, 15,349.59 and 6,406.86

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Solution

The fourth proportional to 11,123.22, 15,349.59 and 6,406.86 is: 8,841.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.22 : 15,349.59 = 6,406.86 : x
  2. Step 2: Convert to fraction form
    11,123.22/15,349.59 = 6,406.86/x
  3. Step 3: Cross multiply
    11,123.22x = 15,349.59 × 6,406.86
  4. Step 4: Simplify right side
    11,123.22x = 98,342,674.19
  5. Step 5: Solve for x
    x = 98,342,674.19/11,123.22
  6. Step 6: Final answer
    x = 8,841.21

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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.