Home / 13,047.20-19,555.62-6,477.56

Finding the Fourth Proportional to 13,047.20, 19,555.62 and 6,477.56

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Solution

The fourth proportional to 13,047.20, 19,555.62 and 6,477.56 is: 9,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,047.20 : 19,555.62 = 6,477.56 : x
  2. Step 2: Convert to fraction form
    13,047.20/19,555.62 = 6,477.56/x
  3. Step 3: Cross multiply
    13,047.20x = 19,555.62 × 6,477.56
  4. Step 4: Simplify right side
    13,047.20x = 126,672,701.89
  5. Step 5: Solve for x
    x = 126,672,701.89/13,047.20
  6. Step 6: Final answer
    x = 9,708.80

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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.