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Finding the Fourth Proportional to 14,346.72, 19,812.72 and 11,393.76

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Solution

The fourth proportional to 14,346.72, 19,812.72 and 11,393.76 is: 15,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,346.72 : 19,812.72 = 11,393.76 : x
  2. Step 2: Convert to fraction form
    14,346.72/19,812.72 = 11,393.76/x
  3. Step 3: Cross multiply
    14,346.72x = 19,812.72 × 11,393.76
  4. Step 4: Simplify right side
    14,346.72x = 225,741,376.63
  5. Step 5: Solve for x
    x = 225,741,376.63/14,346.72
  6. Step 6: Final answer
    x = 15,734.70

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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.