Home / 13,743.34-18,965.80-7,455.72

Finding the Fourth Proportional to 13,743.34, 18,965.80 and 7,455.72

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Solution

The fourth proportional to 13,743.34, 18,965.80 and 7,455.72 is: 10,288.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.34 : 18,965.80 = 7,455.72 : x
  2. Step 2: Convert to fraction form
    13,743.34/18,965.80 = 7,455.72/x
  3. Step 3: Cross multiply
    13,743.34x = 18,965.80 × 7,455.72
  4. Step 4: Simplify right side
    13,743.34x = 141,403,694.38
  5. Step 5: Solve for x
    x = 141,403,694.38/13,743.34
  6. Step 6: Final answer
    x = 10,288.89

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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.