Home / 19,108.78-26,370.07-11,149.47

Finding the Fourth Proportional to 19,108.78, 26,370.07 and 11,149.47

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Solution

The fourth proportional to 19,108.78, 26,370.07 and 11,149.47 is: 15,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,108.78 : 26,370.07 = 11,149.47 : x
  2. Step 2: Convert to fraction form
    19,108.78/26,370.07 = 11,149.47/x
  3. Step 3: Cross multiply
    19,108.78x = 26,370.07 × 11,149.47
  4. Step 4: Simplify right side
    19,108.78x = 294,012,276.49
  5. Step 5: Solve for x
    x = 294,012,276.49/19,108.78
  6. Step 6: Final answer
    x = 15,386.24

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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.