Home / 9,140.89-12,614.43-4,949.14

Finding the Fourth Proportional to 9,140.89, 12,614.43 and 4,949.14

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Solution

The fourth proportional to 9,140.89, 12,614.43 and 4,949.14 is: 6,829.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.89 : 12,614.43 = 4,949.14 : x
  2. Step 2: Convert to fraction form
    9,140.89/12,614.43 = 4,949.14/x
  3. Step 3: Cross multiply
    9,140.89x = 12,614.43 × 4,949.14
  4. Step 4: Simplify right side
    9,140.89x = 62,430,580.09
  5. Step 5: Solve for x
    x = 62,430,580.09/9,140.89
  6. Step 6: Final answer
    x = 6,829.81

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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.