Home / 8,776.54-12,111.28-4,999.92

Finding the Fourth Proportional to 8,776.54, 12,111.28 and 4,999.92

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Solution

The fourth proportional to 8,776.54, 12,111.28 and 4,999.92 is: 6,899.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,776.54 : 12,111.28 = 4,999.92 : x
  2. Step 2: Convert to fraction form
    8,776.54/12,111.28 = 4,999.92/x
  3. Step 3: Cross multiply
    8,776.54x = 12,111.28 × 4,999.92
  4. Step 4: Simplify right side
    8,776.54x = 60,555,431.10
  5. Step 5: Solve for x
    x = 60,555,431.10/8,776.54
  6. Step 6: Final answer
    x = 6,899.69

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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.