Home / 11,290.68-15,570.09-8,608.77

Finding the Fourth Proportional to 11,290.68, 15,570.09 and 8,608.77

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Solution

The fourth proportional to 11,290.68, 15,570.09 and 8,608.77 is: 11,871.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.68 : 15,570.09 = 8,608.77 : x
  2. Step 2: Convert to fraction form
    11,290.68/15,570.09 = 8,608.77/x
  3. Step 3: Cross multiply
    11,290.68x = 15,570.09 × 8,608.77
  4. Step 4: Simplify right side
    11,290.68x = 134,039,323.69
  5. Step 5: Solve for x
    x = 134,039,323.69/11,290.68
  6. Step 6: Final answer
    x = 11,871.68

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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.