Home / 13,442.60-18,552.68-9,678.24

Finding the Fourth Proportional to 13,442.60, 18,552.68 and 9,678.24

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Solution

The fourth proportional to 13,442.60, 18,552.68 and 9,678.24 is: 13,357.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.60 : 18,552.68 = 9,678.24 : x
  2. Step 2: Convert to fraction form
    13,442.60/18,552.68 = 9,678.24/x
  3. Step 3: Cross multiply
    13,442.60x = 18,552.68 × 9,678.24
  4. Step 4: Simplify right side
    13,442.60x = 179,557,289.68
  5. Step 5: Solve for x
    x = 179,557,289.68/13,442.60
  6. Step 6: Final answer
    x = 13,357.33

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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.