Home / 13,238.96-18,269.79-7,271.02

Finding the Fourth Proportional to 13,238.96, 18,269.79 and 7,271.02

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Solution

The fourth proportional to 13,238.96, 18,269.79 and 7,271.02 is: 10,034.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.96 : 18,269.79 = 7,271.02 : x
  2. Step 2: Convert to fraction form
    13,238.96/18,269.79 = 7,271.02/x
  3. Step 3: Cross multiply
    13,238.96x = 18,269.79 × 7,271.02
  4. Step 4: Simplify right side
    13,238.96x = 132,840,008.49
  5. Step 5: Solve for x
    x = 132,840,008.49/13,238.96
  6. Step 6: Final answer
    x = 10,034.02

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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.