Home / 14,785.98-20,404.70-8,071.62

Finding the Fourth Proportional to 14,785.98, 20,404.70 and 8,071.62

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Solution

The fourth proportional to 14,785.98, 20,404.70 and 8,071.62 is: 11,138.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785.98 : 20,404.70 = 8,071.62 : x
  2. Step 2: Convert to fraction form
    14,785.98/20,404.70 = 8,071.62/x
  3. Step 3: Cross multiply
    14,785.98x = 20,404.70 × 8,071.62
  4. Step 4: Simplify right side
    14,785.98x = 164,698,842.23
  5. Step 5: Solve for x
    x = 164,698,842.23/14,785.98
  6. Step 6: Final answer
    x = 11,138.85

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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.