Home / 11,221.95-15,484.60-6,376.39

Finding the Fourth Proportional to 11,221.95, 15,484.60 and 6,376.39

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Solution

The fourth proportional to 11,221.95, 15,484.60 and 6,376.39 is: 8,798.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.95 : 15,484.60 = 6,376.39 : x
  2. Step 2: Convert to fraction form
    11,221.95/15,484.60 = 6,376.39/x
  3. Step 3: Cross multiply
    11,221.95x = 15,484.60 × 6,376.39
  4. Step 4: Simplify right side
    11,221.95x = 98,735,817.85
  5. Step 5: Solve for x
    x = 98,735,817.85/11,221.95
  6. Step 6: Final answer
    x = 8,798.45

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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.