Home / 8,790.36-12,130.65-4,811.52

Finding the Fourth Proportional to 8,790.36, 12,130.65 and 4,811.52

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Solution

The fourth proportional to 8,790.36, 12,130.65 and 4,811.52 is: 6,639.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.36 : 12,130.65 = 4,811.52 : x
  2. Step 2: Convert to fraction form
    8,790.36/12,130.65 = 4,811.52/x
  3. Step 3: Cross multiply
    8,790.36x = 12,130.65 × 4,811.52
  4. Step 4: Simplify right side
    8,790.36x = 58,366,865.09
  5. Step 5: Solve for x
    x = 58,366,865.09/8,790.36
  6. Step 6: Final answer
    x = 6,639.87

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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.