Home / 14,785.11-20,402.73-8,070.57

Finding the Fourth Proportional to 14,785.11, 20,402.73 and 8,070.57

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Solution

The fourth proportional to 14,785.11, 20,402.73 and 8,070.57 is: 11,136.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785.11 : 20,402.73 = 8,070.57 : x
  2. Step 2: Convert to fraction form
    14,785.11/20,402.73 = 8,070.57/x
  3. Step 3: Cross multiply
    14,785.11x = 20,402.73 × 8,070.57
  4. Step 4: Simplify right side
    14,785.11x = 164,661,660.66
  5. Step 5: Solve for x
    x = 164,661,660.66/14,785.11
  6. Step 6: Final answer
    x = 11,136.99

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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.