Home / 8,124.84-11,215.26-6,368.76

Finding the Fourth Proportional to 8,124.84, 11,215.26 and 6,368.76

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Solution

The fourth proportional to 8,124.84, 11,215.26 and 6,368.76 is: 8,791.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.84 : 11,215.26 = 6,368.76 : x
  2. Step 2: Convert to fraction form
    8,124.84/11,215.26 = 6,368.76/x
  3. Step 3: Cross multiply
    8,124.84x = 11,215.26 × 6,368.76
  4. Step 4: Simplify right side
    8,124.84x = 71,427,299.28
  5. Step 5: Solve for x
    x = 71,427,299.28/8,124.84
  6. Step 6: Final answer
    x = 8,791.23

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Half scale
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Double scale
Find fourth proportional to 8,125.84, 11,216.64 and 6,369.76
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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.