Home / 7,509.40-11,264.22-3,125.80

Finding the Fourth Proportional to 7,509.40, 11,264.22 and 3,125.80

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Solution

The fourth proportional to 7,509.40, 11,264.22 and 3,125.80 is: 4,688.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,509.40 : 11,264.22 = 3,125.80 : x
  2. Step 2: Convert to fraction form
    7,509.40/11,264.22 = 3,125.80/x
  3. Step 3: Cross multiply
    7,509.40x = 11,264.22 × 3,125.80
  4. Step 4: Simplify right side
    7,509.40x = 35,209,698.88
  5. Step 5: Solve for x
    x = 35,209,698.88/7,509.40
  6. Step 6: Final answer
    x = 4,688.75

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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.