Home / 13,240.53-18,271.58-7,272.15

Finding the Fourth Proportional to 13,240.53, 18,271.58 and 7,272.15

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Solution

The fourth proportional to 13,240.53, 18,271.58 and 7,272.15 is: 10,035.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.53 : 18,271.58 = 7,272.15 : x
  2. Step 2: Convert to fraction form
    13,240.53/18,271.58 = 7,272.15/x
  3. Step 3: Cross multiply
    13,240.53x = 18,271.58 × 7,272.15
  4. Step 4: Simplify right side
    13,240.53x = 132,873,634.14
  5. Step 5: Solve for x
    x = 132,873,634.14/13,240.53
  6. Step 6: Final answer
    x = 10,035.37

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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.