Home / 9,880.98-13,629.33-6,338.58

Finding the Fourth Proportional to 9,880.98, 13,629.33 and 6,338.58

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Solution

The fourth proportional to 9,880.98, 13,629.33 and 6,338.58 is: 8,743.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,880.98 : 13,629.33 = 6,338.58 : x
  2. Step 2: Convert to fraction form
    9,880.98/13,629.33 = 6,338.58/x
  3. Step 3: Cross multiply
    9,880.98x = 13,629.33 × 6,338.58
  4. Step 4: Simplify right side
    9,880.98x = 86,390,598.55
  5. Step 5: Solve for x
    x = 86,390,598.55/9,880.98
  6. Step 6: Final answer
    x = 8,743.12

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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.