Home / 17,977.28-26,985.09-11,749.79

Finding the Fourth Proportional to 17,977.28, 26,985.09 and 11,749.79

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Solution

The fourth proportional to 17,977.28, 26,985.09 and 11,749.79 is: 17,637.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,977.28 : 26,985.09 = 11,749.79 : x
  2. Step 2: Convert to fraction form
    17,977.28/26,985.09 = 11,749.79/x
  3. Step 3: Cross multiply
    17,977.28x = 26,985.09 × 11,749.79
  4. Step 4: Simplify right side
    17,977.28x = 317,069,005.71
  5. Step 5: Solve for x
    x = 317,069,005.71/17,977.28
  6. Step 6: Final answer
    x = 17,637.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.