Home / 18,417.30-25,418.96-10,865.51

Finding the Fourth Proportional to 18,417.30, 25,418.96 and 10,865.51

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Solution

The fourth proportional to 18,417.30, 25,418.96 and 10,865.51 is: 14,996.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,417.30 : 25,418.96 = 10,865.51 : x
  2. Step 2: Convert to fraction form
    18,417.30/25,418.96 = 10,865.51/x
  3. Step 3: Cross multiply
    18,417.30x = 25,418.96 × 10,865.51
  4. Step 4: Simplify right side
    18,417.30x = 276,189,964.07
  5. Step 5: Solve for x
    x = 276,189,964.07/18,417.30
  6. Step 6: Final answer
    x = 14,996.22

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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.