Home / 11,025.76-15,213.84-7,050.40

Finding the Fourth Proportional to 11,025.76, 15,213.84 and 7,050.40

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Solution

The fourth proportional to 11,025.76, 15,213.84 and 7,050.40 is: 9,728.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,025.76 : 15,213.84 = 7,050.40 : x
  2. Step 2: Convert to fraction form
    11,025.76/15,213.84 = 7,050.40/x
  3. Step 3: Cross multiply
    11,025.76x = 15,213.84 × 7,050.40
  4. Step 4: Simplify right side
    11,025.76x = 107,263,657.54
  5. Step 5: Solve for x
    x = 107,263,657.54/11,025.76
  6. Step 6: Final answer
    x = 9,728.46

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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.