Home / 8,555.67-11,805.57-4,778.37

Finding the Fourth Proportional to 8,555.67, 11,805.57 and 4,778.37

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Solution

The fourth proportional to 8,555.67, 11,805.57 and 4,778.37 is: 6,593.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.67 : 11,805.57 = 4,778.37 : x
  2. Step 2: Convert to fraction form
    8,555.67/11,805.57 = 4,778.37/x
  3. Step 3: Cross multiply
    8,555.67x = 11,805.57 × 4,778.37
  4. Step 4: Simplify right side
    8,555.67x = 56,411,381.52
  5. Step 5: Solve for x
    x = 56,411,381.52/8,555.67
  6. Step 6: Final answer
    x = 6,593.45

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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.