Home / 9,085.86-13,628.79-5,007.78

Finding the Fourth Proportional to 9,085.86, 13,628.79 and 5,007.78

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Solution

The fourth proportional to 9,085.86, 13,628.79 and 5,007.78 is: 7,511.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,085.86 : 13,628.79 = 5,007.78 : x
  2. Step 2: Convert to fraction form
    9,085.86/13,628.79 = 5,007.78/x
  3. Step 3: Cross multiply
    9,085.86x = 13,628.79 × 5,007.78
  4. Step 4: Simplify right side
    9,085.86x = 68,249,981.99
  5. Step 5: Solve for x
    x = 68,249,981.99/9,085.86
  6. Step 6: Final answer
    x = 7,511.67

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Similar ratio
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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.