Home / 7,420.14-11,133.09-2,803.50

Finding the Fourth Proportional to 7,420.14, 11,133.09 and 2,803.50

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Solution

The fourth proportional to 7,420.14, 11,133.09 and 2,803.50 is: 4,206.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.14 : 11,133.09 = 2,803.50 : x
  2. Step 2: Convert to fraction form
    7,420.14/11,133.09 = 2,803.50/x
  3. Step 3: Cross multiply
    7,420.14x = 11,133.09 × 2,803.50
  4. Step 4: Simplify right side
    7,420.14x = 31,211,617.82
  5. Step 5: Solve for x
    x = 31,211,617.82/7,420.14
  6. Step 6: Final answer
    x = 4,206.34

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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.