Home / 13,990.08-19,307.98-8,021.73

Finding the Fourth Proportional to 13,990.08, 19,307.98 and 8,021.73

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Solution

The fourth proportional to 13,990.08, 19,307.98 and 8,021.73 is: 11,070.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.08 : 19,307.98 = 8,021.73 : x
  2. Step 2: Convert to fraction form
    13,990.08/19,307.98 = 8,021.73/x
  3. Step 3: Cross multiply
    13,990.08x = 19,307.98 × 8,021.73
  4. Step 4: Simplify right side
    13,990.08x = 154,883,402.41
  5. Step 5: Solve for x
    x = 154,883,402.41/13,990.08
  6. Step 6: Final answer
    x = 11,070.94

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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.