Home / 10,190.79-14,057.60-6,412.55

Finding the Fourth Proportional to 10,190.79, 14,057.60 and 6,412.55

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Solution

The fourth proportional to 10,190.79, 14,057.60 and 6,412.55 is: 8,845.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,190.79 : 14,057.60 = 6,412.55 : x
  2. Step 2: Convert to fraction form
    10,190.79/14,057.60 = 6,412.55/x
  3. Step 3: Cross multiply
    10,190.79x = 14,057.60 × 6,412.55
  4. Step 4: Simplify right side
    10,190.79x = 90,144,960.53
  5. Step 5: Solve for x
    x = 90,144,960.53/10,190.79
  6. Step 6: Final answer
    x = 8,845.73

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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.