Home / 15,065.48-20,790.47-8,351.60

Finding the Fourth Proportional to 15,065.48, 20,790.47 and 8,351.60

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Solution

The fourth proportional to 15,065.48, 20,790.47 and 8,351.60 is: 11,525.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,065.48 : 20,790.47 = 8,351.60 : x
  2. Step 2: Convert to fraction form
    15,065.48/20,790.47 = 8,351.60/x
  3. Step 3: Cross multiply
    15,065.48x = 20,790.47 × 8,351.60
  4. Step 4: Simplify right side
    15,065.48x = 173,633,606.18
  5. Step 5: Solve for x
    x = 173,633,606.18/15,065.48
  6. Step 6: Final answer
    x = 11,525.26

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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.