Home / 13,308.11-18,364.83-7,339.67

Finding the Fourth Proportional to 13,308.11, 18,364.83 and 7,339.67

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Solution

The fourth proportional to 13,308.11, 18,364.83 and 7,339.67 is: 10,128.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.11 : 18,364.83 = 7,339.67 : x
  2. Step 2: Convert to fraction form
    13,308.11/18,364.83 = 7,339.67/x
  3. Step 3: Cross multiply
    13,308.11x = 18,364.83 × 7,339.67
  4. Step 4: Simplify right side
    13,308.11x = 134,791,791.81
  5. Step 5: Solve for x
    x = 134,791,791.81/13,308.11
  6. Step 6: Final answer
    x = 10,128.55

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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.