Home / 18,987.48-26,203.26-10,603.80

Finding the Fourth Proportional to 18,987.48, 26,203.26 and 10,603.80

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Solution

The fourth proportional to 18,987.48, 26,203.26 and 10,603.80 is: 14,633.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.48 : 26,203.26 = 10,603.80 : x
  2. Step 2: Convert to fraction form
    18,987.48/26,203.26 = 10,603.80/x
  3. Step 3: Cross multiply
    18,987.48x = 26,203.26 × 10,603.80
  4. Step 4: Simplify right side
    18,987.48x = 277,854,128.39
  5. Step 5: Solve for x
    x = 277,854,128.39/18,987.48
  6. Step 6: Final answer
    x = 14,633.54

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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.