Home / 18,417.18-25,431.94-13,693.26

Finding the Fourth Proportional to 18,417.18, 25,431.94 and 13,693.26

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Solution

The fourth proportional to 18,417.18, 25,431.94 and 13,693.26 is: 18,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,417.18 : 25,431.94 = 13,693.26 : x
  2. Step 2: Convert to fraction form
    18,417.18/25,431.94 = 13,693.26/x
  3. Step 3: Cross multiply
    18,417.18x = 25,431.94 × 13,693.26
  4. Step 4: Simplify right side
    18,417.18x = 348,246,166.72
  5. Step 5: Solve for x
    x = 348,246,166.72/18,417.18
  6. Step 6: Final answer
    x = 18,908.77

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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.