Home / 14,351.72-21,527.57-4,991.78

Finding the Fourth Proportional to 14,351.72, 21,527.57 and 4,991.78

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Solution

The fourth proportional to 14,351.72, 21,527.57 and 4,991.78 is: 7,487.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,351.72 : 21,527.57 = 4,991.78 : x
  2. Step 2: Convert to fraction form
    14,351.72/21,527.57 = 4,991.78/x
  3. Step 3: Cross multiply
    14,351.72x = 21,527.57 × 4,991.78
  4. Step 4: Simplify right side
    14,351.72x = 107,460,959.67
  5. Step 5: Solve for x
    x = 107,460,959.67/14,351.72
  6. Step 6: Final answer
    x = 7,487.67

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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.