Home / 14,784.92-20,403-8,070.66

Finding the Fourth Proportional to 14,784.92, 20,403 and 8,070.66

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Solution

The fourth proportional to 14,784.92, 20,403 and 8,070.66 is: 11,137.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,784.92 : 20,403 = 8,070.66 : x
  2. Step 2: Convert to fraction form
    14,784.92/20,403 = 8,070.66/x
  3. Step 3: Cross multiply
    14,784.92x = 20,403 × 8,070.66
  4. Step 4: Simplify right side
    14,784.92x = 164,665,675.98
  5. Step 5: Solve for x
    x = 164,665,675.98/14,784.92
  6. Step 6: Final answer
    x = 11,137.41

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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.