Home / 13,743.16-18,965.56-7,455.53

Finding the Fourth Proportional to 13,743.16, 18,965.56 and 7,455.53

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Solution

The fourth proportional to 13,743.16, 18,965.56 and 7,455.53 is: 10,288.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.16 : 18,965.56 = 7,455.53 : x
  2. Step 2: Convert to fraction form
    13,743.16/18,965.56 = 7,455.53/x
  3. Step 3: Cross multiply
    13,743.16x = 18,965.56 × 7,455.53
  4. Step 4: Simplify right side
    13,743.16x = 141,398,301.55
  5. Step 5: Solve for x
    x = 141,398,301.55/13,743.16
  6. Step 6: Final answer
    x = 10,288.63

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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.