Home / 10,021.68-13,827.42-6,480.64

Finding the Fourth Proportional to 10,021.68, 13,827.42 and 6,480.64

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Solution

The fourth proportional to 10,021.68, 13,827.42 and 6,480.64 is: 8,941.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021.68 : 13,827.42 = 6,480.64 : x
  2. Step 2: Convert to fraction form
    10,021.68/13,827.42 = 6,480.64/x
  3. Step 3: Cross multiply
    10,021.68x = 13,827.42 × 6,480.64
  4. Step 4: Simplify right side
    10,021.68x = 89,610,531.15
  5. Step 5: Solve for x
    x = 89,610,531.15/10,021.68
  6. Step 6: Final answer
    x = 8,941.67

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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.