Home / 8,899.06-12,280.08-4,919.80

Finding the Fourth Proportional to 8,899.06, 12,280.08 and 4,919.80

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Solution

The fourth proportional to 8,899.06, 12,280.08 and 4,919.80 is: 6,788.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.06 : 12,280.08 = 4,919.80 : x
  2. Step 2: Convert to fraction form
    8,899.06/12,280.08 = 4,919.80/x
  3. Step 3: Cross multiply
    8,899.06x = 12,280.08 × 4,919.80
  4. Step 4: Simplify right side
    8,899.06x = 60,415,537.58
  5. Step 5: Solve for x
    x = 60,415,537.58/8,899.06
  6. Step 6: Final answer
    x = 6,788.98

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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.