Home / 8,343.90-11,513.79-4,986.05

Finding the Fourth Proportional to 8,343.90, 11,513.79 and 4,986.05

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Solution

The fourth proportional to 8,343.90, 11,513.79 and 4,986.05 is: 6,880.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343.90 : 11,513.79 = 4,986.05 : x
  2. Step 2: Convert to fraction form
    8,343.90/11,513.79 = 4,986.05/x
  3. Step 3: Cross multiply
    8,343.90x = 11,513.79 × 4,986.05
  4. Step 4: Simplify right side
    8,343.90x = 57,408,275.06
  5. Step 5: Solve for x
    x = 57,408,275.06/8,343.90
  6. Step 6: Final answer
    x = 6,880.27

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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.