Home / 8,790.87-13,130.04-7,956.66

Finding the Fourth Proportional to 8,790.87, 13,130.04 and 7,956.66

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Solution

The fourth proportional to 8,790.87, 13,130.04 and 7,956.66 is: 11,884.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.87 : 13,130.04 = 7,956.66 : x
  2. Step 2: Convert to fraction form
    8,790.87/13,130.04 = 7,956.66/x
  3. Step 3: Cross multiply
    8,790.87x = 13,130.04 × 7,956.66
  4. Step 4: Simplify right side
    8,790.87x = 104,471,264.07
  5. Step 5: Solve for x
    x = 104,471,264.07/8,790.87
  6. Step 6: Final answer
    x = 11,884.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.