Home / 7,429.02-11,143.44-1,806.72

Finding the Fourth Proportional to 7,429.02, 11,143.44 and 1,806.72

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Solution

The fourth proportional to 7,429.02, 11,143.44 and 1,806.72 is: 2,710.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.02 : 11,143.44 = 1,806.72 : x
  2. Step 2: Convert to fraction form
    7,429.02/11,143.44 = 1,806.72/x
  3. Step 3: Cross multiply
    7,429.02x = 11,143.44 × 1,806.72
  4. Step 4: Simplify right side
    7,429.02x = 20,133,066.88
  5. Step 5: Solve for x
    x = 20,133,066.88/7,429.02
  6. Step 6: Final answer
    x = 2,710.06

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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.