Home / 14,851.63-20,494.91-8,390.66

Finding the Fourth Proportional to 14,851.63, 20,494.91 and 8,390.66

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Solution

The fourth proportional to 14,851.63, 20,494.91 and 8,390.66 is: 11,578.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,851.63 : 20,494.91 = 8,390.66 : x
  2. Step 2: Convert to fraction form
    14,851.63/20,494.91 = 8,390.66/x
  3. Step 3: Cross multiply
    14,851.63x = 20,494.91 × 8,390.66
  4. Step 4: Simplify right side
    14,851.63x = 171,965,893.75
  5. Step 5: Solve for x
    x = 171,965,893.75/14,851.63
  6. Step 6: Final answer
    x = 11,578.93

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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.