Home / 8,790.24-12,125.52-7,744.80

Finding the Fourth Proportional to 8,790.24, 12,125.52 and 7,744.80

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Solution

The fourth proportional to 8,790.24, 12,125.52 and 7,744.80 is: 10,683.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.24 : 12,125.52 = 7,744.80 : x
  2. Step 2: Convert to fraction form
    8,790.24/12,125.52 = 7,744.80/x
  3. Step 3: Cross multiply
    8,790.24x = 12,125.52 × 7,744.80
  4. Step 4: Simplify right side
    8,790.24x = 93,909,727.30
  5. Step 5: Solve for x
    x = 93,909,727.30/8,790.24
  6. Step 6: Final answer
    x = 10,683.41

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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.