Home / 11,525.60-15,903.56-6,489.56

Finding the Fourth Proportional to 11,525.60, 15,903.56 and 6,489.56

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Solution

The fourth proportional to 11,525.60, 15,903.56 and 6,489.56 is: 8,954.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,525.60 : 15,903.56 = 6,489.56 : x
  2. Step 2: Convert to fraction form
    11,525.60/15,903.56 = 6,489.56/x
  3. Step 3: Cross multiply
    11,525.60x = 15,903.56 × 6,489.56
  4. Step 4: Simplify right side
    11,525.60x = 103,207,106.83
  5. Step 5: Solve for x
    x = 103,207,106.83/11,525.60
  6. Step 6: Final answer
    x = 8,954.60

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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.