Home / 10,639.70-14,680.56-6,163.19

Finding the Fourth Proportional to 10,639.70, 14,680.56 and 6,163.19

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Solution

The fourth proportional to 10,639.70, 14,680.56 and 6,163.19 is: 8,503.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.70 : 14,680.56 = 6,163.19 : x
  2. Step 2: Convert to fraction form
    10,639.70/14,680.56 = 6,163.19/x
  3. Step 3: Cross multiply
    10,639.70x = 14,680.56 × 6,163.19
  4. Step 4: Simplify right side
    10,639.70x = 90,478,984.07
  5. Step 5: Solve for x
    x = 90,478,984.07/10,639.70
  6. Step 6: Final answer
    x = 8,503.90

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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.