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Finding the Fourth Proportional to 13,082.51, 18,053.48 and 7,417.79

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Solution

The fourth proportional to 13,082.51, 18,053.48 and 7,417.79 is: 10,236.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,082.51 : 18,053.48 = 7,417.79 : x
  2. Step 2: Convert to fraction form
    13,082.51/18,053.48 = 7,417.79/x
  3. Step 3: Cross multiply
    13,082.51x = 18,053.48 × 7,417.79
  4. Step 4: Simplify right side
    13,082.51x = 133,916,987.09
  5. Step 5: Solve for x
    x = 133,916,987.09/13,082.51
  6. Step 6: Final answer
    x = 10,236.34

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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.