Home / 7,150.60-9,867.69-4,125.70

Finding the Fourth Proportional to 7,150.60, 9,867.69 and 4,125.70

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Solution

The fourth proportional to 7,150.60, 9,867.69 and 4,125.70 is: 5,693.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150.60 : 9,867.69 = 4,125.70 : x
  2. Step 2: Convert to fraction form
    7,150.60/9,867.69 = 4,125.70/x
  3. Step 3: Cross multiply
    7,150.60x = 9,867.69 × 4,125.70
  4. Step 4: Simplify right side
    7,150.60x = 40,711,128.63
  5. Step 5: Solve for x
    x = 40,711,128.63/7,150.60
  6. Step 6: Final answer
    x = 5,693.39

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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.