Home / 7,815.60-11,725.56-4,522.68

Finding the Fourth Proportional to 7,815.60, 11,725.56 and 4,522.68

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Solution

The fourth proportional to 7,815.60, 11,725.56 and 4,522.68 is: 6,785.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.60 : 11,725.56 = 4,522.68 : x
  2. Step 2: Convert to fraction form
    7,815.60/11,725.56 = 4,522.68/x
  3. Step 3: Cross multiply
    7,815.60x = 11,725.56 × 4,522.68
  4. Step 4: Simplify right side
    7,815.60x = 53,030,955.70
  5. Step 5: Solve for x
    x = 53,030,955.70/7,815.60
  6. Step 6: Final answer
    x = 6,785.27

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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.