Home / 13,247.01-18,280.81-7,581.73

Finding the Fourth Proportional to 13,247.01, 18,280.81 and 7,581.73

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Solution

The fourth proportional to 13,247.01, 18,280.81 and 7,581.73 is: 10,462.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.01 : 18,280.81 = 7,581.73 : x
  2. Step 2: Convert to fraction form
    13,247.01/18,280.81 = 7,581.73/x
  3. Step 3: Cross multiply
    13,247.01x = 18,280.81 × 7,581.73
  4. Step 4: Simplify right side
    13,247.01x = 138,600,133.56
  5. Step 5: Solve for x
    x = 138,600,133.56/13,247.01
  6. Step 6: Final answer
    x = 10,462.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.