Home / 13,199.05-18,214.69-7,230.93

Finding the Fourth Proportional to 13,199.05, 18,214.69 and 7,230.93

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Solution

The fourth proportional to 13,199.05, 18,214.69 and 7,230.93 is: 9,978.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.05 : 18,214.69 = 7,230.93 : x
  2. Step 2: Convert to fraction form
    13,199.05/18,214.69 = 7,230.93/x
  3. Step 3: Cross multiply
    13,199.05x = 18,214.69 × 7,230.93
  4. Step 4: Simplify right side
    13,199.05x = 131,709,148.36
  5. Step 5: Solve for x
    x = 131,709,148.36/13,199.05
  6. Step 6: Final answer
    x = 9,978.69

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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.