Home / 9,880.96-13,643.58-6,109.60

Finding the Fourth Proportional to 9,880.96, 13,643.58 and 6,109.60

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Solution

The fourth proportional to 9,880.96, 13,643.58 and 6,109.60 is: 8,436.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,880.96 : 13,643.58 = 6,109.60 : x
  2. Step 2: Convert to fraction form
    9,880.96/13,643.58 = 6,109.60/x
  3. Step 3: Cross multiply
    9,880.96x = 13,643.58 × 6,109.60
  4. Step 4: Simplify right side
    9,880.96x = 83,356,816.37
  5. Step 5: Solve for x
    x = 83,356,816.37/9,880.96
  6. Step 6: Final answer
    x = 8,436.11

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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.