Home / 14,785.27-20,403.72-8,071.04

Finding the Fourth Proportional to 14,785.27, 20,403.72 and 8,071.04

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Solution

The fourth proportional to 14,785.27, 20,403.72 and 8,071.04 is: 11,138.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785.27 : 20,403.72 = 8,071.04 : x
  2. Step 2: Convert to fraction form
    14,785.27/20,403.72 = 8,071.04/x
  3. Step 3: Cross multiply
    14,785.27x = 20,403.72 × 8,071.04
  4. Step 4: Simplify right side
    14,785.27x = 164,679,291.28
  5. Step 5: Solve for x
    x = 164,679,291.28/14,785.27
  6. Step 6: Final answer
    x = 11,138.07

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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.