Home / 8,555.16-11,805.99-4,778.39

Finding the Fourth Proportional to 8,555.16, 11,805.99 and 4,778.39

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Solution

The fourth proportional to 8,555.16, 11,805.99 and 4,778.39 is: 6,594.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.16 : 11,805.99 = 4,778.39 : x
  2. Step 2: Convert to fraction form
    8,555.16/11,805.99 = 4,778.39/x
  3. Step 3: Cross multiply
    8,555.16x = 11,805.99 × 4,778.39
  4. Step 4: Simplify right side
    8,555.16x = 56,413,565.53
  5. Step 5: Solve for x
    x = 56,413,565.53/8,555.16
  6. Step 6: Final answer
    x = 6,594.10

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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.