Home / 8,123.15-11,209.95-4,586.39

Finding the Fourth Proportional to 8,123.15, 11,209.95 and 4,586.39

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Solution

The fourth proportional to 8,123.15, 11,209.95 and 4,586.39 is: 6,329.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.15 : 11,209.95 = 4,586.39 : x
  2. Step 2: Convert to fraction form
    8,123.15/11,209.95 = 4,586.39/x
  3. Step 3: Cross multiply
    8,123.15x = 11,209.95 × 4,586.39
  4. Step 4: Simplify right side
    8,123.15x = 51,413,146.53
  5. Step 5: Solve for x
    x = 51,413,146.53/8,123.15
  6. Step 6: Final answer
    x = 6,329.22

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Half scale
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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.