Home / 13,248.23-18,282.47-7,198.45

Finding the Fourth Proportional to 13,248.23, 18,282.47 and 7,198.45

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Solution

The fourth proportional to 13,248.23, 18,282.47 and 7,198.45 is: 9,933.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.23 : 18,282.47 = 7,198.45 : x
  2. Step 2: Convert to fraction form
    13,248.23/18,282.47 = 7,198.45/x
  3. Step 3: Cross multiply
    13,248.23x = 18,282.47 × 7,198.45
  4. Step 4: Simplify right side
    13,248.23x = 131,605,446.17
  5. Step 5: Solve for x
    x = 131,605,446.17/13,248.23
  6. Step 6: Final answer
    x = 9,933.81

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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.