Home / 11,114.60-15,334.50-6,639.08

Finding the Fourth Proportional to 11,114.60, 15,334.50 and 6,639.08

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Solution

The fourth proportional to 11,114.60, 15,334.50 and 6,639.08 is: 9,159.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.60 : 15,334.50 = 6,639.08 : x
  2. Step 2: Convert to fraction form
    11,114.60/15,334.50 = 6,639.08/x
  3. Step 3: Cross multiply
    11,114.60x = 15,334.50 × 6,639.08
  4. Step 4: Simplify right side
    11,114.60x = 101,806,972.26
  5. Step 5: Solve for x
    x = 101,806,972.26/11,114.60
  6. Step 6: Final answer
    x = 9,159.75

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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.