Home / 11,435.14-15,771.60-7,657.10

Finding the Fourth Proportional to 11,435.14, 15,771.60 and 7,657.10

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Solution

The fourth proportional to 11,435.14, 15,771.60 and 7,657.10 is: 10,560.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,435.14 : 15,771.60 = 7,657.10 : x
  2. Step 2: Convert to fraction form
    11,435.14/15,771.60 = 7,657.10/x
  3. Step 3: Cross multiply
    11,435.14x = 15,771.60 × 7,657.10
  4. Step 4: Simplify right side
    11,435.14x = 120,764,718.36
  5. Step 5: Solve for x
    x = 120,764,718.36/11,435.14
  6. Step 6: Final answer
    x = 10,560.84

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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.