Home / 26,987.88-40,486.64-12,203.76

Finding the Fourth Proportional to 26,987.88, 40,486.64 and 12,203.76

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Solution

The fourth proportional to 26,987.88, 40,486.64 and 12,203.76 is: 18,307.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,987.88 : 40,486.64 = 12,203.76 : x
  2. Step 2: Convert to fraction form
    26,987.88/40,486.64 = 12,203.76/x
  3. Step 3: Cross multiply
    26,987.88x = 40,486.64 × 12,203.76
  4. Step 4: Simplify right side
    26,987.88x = 494,089,237.77
  5. Step 5: Solve for x
    x = 494,089,237.77/26,987.88
  6. Step 6: Final answer
    x = 18,307.82

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1.5x scale

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.