Home / 12,235.14-18,358.59-6,688.26

Finding the Fourth Proportional to 12,235.14, 18,358.59 and 6,688.26

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Solution

The fourth proportional to 12,235.14, 18,358.59 and 6,688.26 is: 10,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.14 : 18,358.59 = 6,688.26 : x
  2. Step 2: Convert to fraction form
    12,235.14/18,358.59 = 6,688.26/x
  3. Step 3: Cross multiply
    12,235.14x = 18,358.59 × 6,688.26
  4. Step 4: Simplify right side
    12,235.14x = 122,787,023.15
  5. Step 5: Solve for x
    x = 122,787,023.15/12,235.14
  6. Step 6: Final answer
    x = 10,035.60

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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.