Home / 13,440.72-20,166.86-4,670.85

Finding the Fourth Proportional to 13,440.72, 20,166.86 and 4,670.85

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Solution

The fourth proportional to 13,440.72, 20,166.86 and 4,670.85 is: 7,008.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.72 : 20,166.86 = 4,670.85 : x
  2. Step 2: Convert to fraction form
    13,440.72/20,166.86 = 4,670.85/x
  3. Step 3: Cross multiply
    13,440.72x = 20,166.86 × 4,670.85
  4. Step 4: Simplify right side
    13,440.72x = 94,196,378.03
  5. Step 5: Solve for x
    x = 94,196,378.03/13,440.72
  6. Step 6: Final answer
    x = 7,008.28

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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.