Home / 18,971.24-26,165.94-11,417

Finding the Fourth Proportional to 18,971.24, 26,165.94 and 11,417

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Solution

The fourth proportional to 18,971.24, 26,165.94 and 11,417 is: 15,746.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971.24 : 26,165.94 = 11,417 : x
  2. Step 2: Convert to fraction form
    18,971.24/26,165.94 = 11,417/x
  3. Step 3: Cross multiply
    18,971.24x = 26,165.94 × 11,417
  4. Step 4: Simplify right side
    18,971.24x = 298,736,536.98
  5. Step 5: Solve for x
    x = 298,736,536.98/18,971.24
  6. Step 6: Final answer
    x = 15,746.81

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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.