Home / 7,478.88-11,225.26-3,783.72

Finding the Fourth Proportional to 7,478.88, 11,225.26 and 3,783.72

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Solution

The fourth proportional to 7,478.88, 11,225.26 and 3,783.72 is: 5,679.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.88 : 11,225.26 = 3,783.72 : x
  2. Step 2: Convert to fraction form
    7,478.88/11,225.26 = 3,783.72/x
  3. Step 3: Cross multiply
    7,478.88x = 11,225.26 × 3,783.72
  4. Step 4: Simplify right side
    7,478.88x = 42,473,240.77
  5. Step 5: Solve for x
    x = 42,473,240.77/7,478.88
  6. Step 6: Final answer
    x = 5,679.09

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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.