Home / 9,139.60-13,698.38-4,202.47

Finding the Fourth Proportional to 9,139.60, 13,698.38 and 4,202.47

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Solution

The fourth proportional to 9,139.60, 13,698.38 and 4,202.47 is: 6,298.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.60 : 13,698.38 = 4,202.47 : x
  2. Step 2: Convert to fraction form
    9,139.60/13,698.38 = 4,202.47/x
  3. Step 3: Cross multiply
    9,139.60x = 13,698.38 × 4,202.47
  4. Step 4: Simplify right side
    9,139.60x = 57,567,009.99
  5. Step 5: Solve for x
    x = 57,567,009.99/9,139.60
  6. Step 6: Final answer
    x = 6,298.64

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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.