Home / 15,115.60-20,845.58-9,448.54

Finding the Fourth Proportional to 15,115.60, 20,845.58 and 9,448.54

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Solution

The fourth proportional to 15,115.60, 20,845.58 and 9,448.54 is: 13,030.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,115.60 : 20,845.58 = 9,448.54 : x
  2. Step 2: Convert to fraction form
    15,115.60/20,845.58 = 9,448.54/x
  3. Step 3: Cross multiply
    15,115.60x = 20,845.58 × 9,448.54
  4. Step 4: Simplify right side
    15,115.60x = 196,960,296.45
  5. Step 5: Solve for x
    x = 196,960,296.45/15,115.60
  6. Step 6: Final answer
    x = 13,030.27

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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.