Home / 15,247.90-21,052.47-11,704.86

Finding the Fourth Proportional to 15,247.90, 21,052.47 and 11,704.86

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Solution

The fourth proportional to 15,247.90, 21,052.47 and 11,704.86 is: 16,160.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,247.90 : 21,052.47 = 11,704.86 : x
  2. Step 2: Convert to fraction form
    15,247.90/21,052.47 = 11,704.86/x
  3. Step 3: Cross multiply
    15,247.90x = 21,052.47 × 11,704.86
  4. Step 4: Simplify right side
    15,247.90x = 246,416,214.00
  5. Step 5: Solve for x
    x = 246,416,214.00/15,247.90
  6. Step 6: Final answer
    x = 16,160.67

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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.