Home / 11,392.80-15,722.01-6,357.03

Finding the Fourth Proportional to 11,392.80, 15,722.01 and 6,357.03

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Solution

The fourth proportional to 11,392.80, 15,722.01 and 6,357.03 is: 8,772.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.80 : 15,722.01 = 6,357.03 : x
  2. Step 2: Convert to fraction form
    11,392.80/15,722.01 = 6,357.03/x
  3. Step 3: Cross multiply
    11,392.80x = 15,722.01 × 6,357.03
  4. Step 4: Simplify right side
    11,392.80x = 99,945,289.23
  5. Step 5: Solve for x
    x = 99,945,289.23/11,392.80
  6. Step 6: Final answer
    x = 8,772.67

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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.