Home / 8,946.80-13,385.58-7,790.12

Finding the Fourth Proportional to 8,946.80, 13,385.58 and 7,790.12

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Solution

The fourth proportional to 8,946.80, 13,385.58 and 7,790.12 is: 11,655.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,946.80 : 13,385.58 = 7,790.12 : x
  2. Step 2: Convert to fraction form
    8,946.80/13,385.58 = 7,790.12/x
  3. Step 3: Cross multiply
    8,946.80x = 13,385.58 × 7,790.12
  4. Step 4: Simplify right side
    8,946.80x = 104,275,274.47
  5. Step 5: Solve for x
    x = 104,275,274.47/8,946.80
  6. Step 6: Final answer
    x = 11,655.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.