Home / 8,941.30-12,340.90-5,165.08

Finding the Fourth Proportional to 8,941.30, 12,340.90 and 5,165.08

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Solution

The fourth proportional to 8,941.30, 12,340.90 and 5,165.08 is: 7,128.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,941.30 : 12,340.90 = 5,165.08 : x
  2. Step 2: Convert to fraction form
    8,941.30/12,340.90 = 5,165.08/x
  3. Step 3: Cross multiply
    8,941.30x = 12,340.90 × 5,165.08
  4. Step 4: Simplify right side
    8,941.30x = 63,741,735.77
  5. Step 5: Solve for x
    x = 63,741,735.77/8,941.30
  6. Step 6: Final answer
    x = 7,128.91

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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.