Home / 7,526.81-11,287.85-3,143.36

Finding the Fourth Proportional to 7,526.81, 11,287.85 and 3,143.36

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Solution

The fourth proportional to 7,526.81, 11,287.85 and 3,143.36 is: 4,714.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,526.81 : 11,287.85 = 3,143.36 : x
  2. Step 2: Convert to fraction form
    7,526.81/11,287.85 = 3,143.36/x
  3. Step 3: Cross multiply
    7,526.81x = 11,287.85 × 3,143.36
  4. Step 4: Simplify right side
    7,526.81x = 35,481,704.02
  5. Step 5: Solve for x
    x = 35,481,704.02/7,526.81
  6. Step 6: Final answer
    x = 4,714.05

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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.