Home / 11,388.69-15,717.12-6,353.67

Finding the Fourth Proportional to 11,388.69, 15,717.12 and 6,353.67

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Solution

The fourth proportional to 11,388.69, 15,717.12 and 6,353.67 is: 8,768.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.69 : 15,717.12 = 6,353.67 : x
  2. Step 2: Convert to fraction form
    11,388.69/15,717.12 = 6,353.67/x
  3. Step 3: Cross multiply
    11,388.69x = 15,717.12 × 6,353.67
  4. Step 4: Simplify right side
    11,388.69x = 99,861,393.83
  5. Step 5: Solve for x
    x = 99,861,393.83/11,388.69
  6. Step 6: Final answer
    x = 8,768.47

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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.