Home / 19,089.60-26,340-11,534.40

Finding the Fourth Proportional to 19,089.60, 26,340 and 11,534.40

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Solution

The fourth proportional to 19,089.60, 26,340 and 11,534.40 is: 15,915.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,089.60 : 26,340 = 11,534.40 : x
  2. Step 2: Convert to fraction form
    19,089.60/26,340 = 11,534.40/x
  3. Step 3: Cross multiply
    19,089.60x = 26,340 × 11,534.40
  4. Step 4: Simplify right side
    19,089.60x = 303,816,096
  5. Step 5: Solve for x
    x = 303,816,096/19,089.60
  6. Step 6: Final answer
    x = 15,915.27

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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.