Home / 13,199.36-18,214.95-7,230.67

Finding the Fourth Proportional to 13,199.36, 18,214.95 and 7,230.67

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Solution

The fourth proportional to 13,199.36, 18,214.95 and 7,230.67 is: 9,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.36 : 18,214.95 = 7,230.67 : x
  2. Step 2: Convert to fraction form
    13,199.36/18,214.95 = 7,230.67/x
  3. Step 3: Cross multiply
    13,199.36x = 18,214.95 × 7,230.67
  4. Step 4: Simplify right side
    13,199.36x = 131,706,292.52
  5. Step 5: Solve for x
    x = 131,706,292.52/13,199.36
  6. Step 6: Final answer
    x = 9,978.23

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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.