Home / 7,685.40-11,528.10-5,352.60

Finding the Fourth Proportional to 7,685.40, 11,528.10 and 5,352.60

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Solution

The fourth proportional to 7,685.40, 11,528.10 and 5,352.60 is: 8,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.40 : 11,528.10 = 5,352.60 : x
  2. Step 2: Convert to fraction form
    7,685.40/11,528.10 = 5,352.60/x
  3. Step 3: Cross multiply
    7,685.40x = 11,528.10 × 5,352.60
  4. Step 4: Simplify right side
    7,685.40x = 61,705,308.06
  5. Step 5: Solve for x
    x = 61,705,308.06/7,685.40
  6. Step 6: Final answer
    x = 8,028.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.