Home / 8,785.77-12,124.61-4,807.12

Finding the Fourth Proportional to 8,785.77, 12,124.61 and 4,807.12

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Solution

The fourth proportional to 8,785.77, 12,124.61 and 4,807.12 is: 6,633.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.77 : 12,124.61 = 4,807.12 : x
  2. Step 2: Convert to fraction form
    8,785.77/12,124.61 = 4,807.12/x
  3. Step 3: Cross multiply
    8,785.77x = 12,124.61 × 4,807.12
  4. Step 4: Simplify right side
    8,785.77x = 58,284,455.22
  5. Step 5: Solve for x
    x = 58,284,455.22/8,785.77
  6. Step 6: Final answer
    x = 6,633.96

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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.