Home / 11,332.81-15,634.91-8,355.72

Finding the Fourth Proportional to 11,332.81, 15,634.91 and 8,355.72

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Solution

The fourth proportional to 11,332.81, 15,634.91 and 8,355.72 is: 11,527.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,332.81 : 15,634.91 = 8,355.72 : x
  2. Step 2: Convert to fraction form
    11,332.81/15,634.91 = 8,355.72/x
  3. Step 3: Cross multiply
    11,332.81x = 15,634.91 × 8,355.72
  4. Step 4: Simplify right side
    11,332.81x = 130,640,930.19
  5. Step 5: Solve for x
    x = 130,640,930.19/11,332.81
  6. Step 6: Final answer
    x = 11,527.67

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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.