Home / 8,123.98-11,211.60-4,587.80

Finding the Fourth Proportional to 8,123.98, 11,211.60 and 4,587.80

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Solution

The fourth proportional to 8,123.98, 11,211.60 and 4,587.80 is: 6,331.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.98 : 11,211.60 = 4,587.80 : x
  2. Step 2: Convert to fraction form
    8,123.98/11,211.60 = 4,587.80/x
  3. Step 3: Cross multiply
    8,123.98x = 11,211.60 × 4,587.80
  4. Step 4: Simplify right side
    8,123.98x = 51,436,578.48
  5. Step 5: Solve for x
    x = 51,436,578.48/8,123.98
  6. Step 6: Final answer
    x = 6,331.45

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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.