Home / 10,021.08-13,829.32-6,490.44

Finding the Fourth Proportional to 10,021.08, 13,829.32 and 6,490.44

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Solution

The fourth proportional to 10,021.08, 13,829.32 and 6,490.44 is: 8,956.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021.08 : 13,829.32 = 6,490.44 : x
  2. Step 2: Convert to fraction form
    10,021.08/13,829.32 = 6,490.44/x
  3. Step 3: Cross multiply
    10,021.08x = 13,829.32 × 6,490.44
  4. Step 4: Simplify right side
    10,021.08x = 89,758,379.81
  5. Step 5: Solve for x
    x = 89,758,379.81/10,021.08
  6. Step 6: Final answer
    x = 8,956.95

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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.