Home / 19,411.20-26,774.40-13,113.60

Finding the Fourth Proportional to 19,411.20, 26,774.40 and 13,113.60

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Solution

The fourth proportional to 19,411.20, 26,774.40 and 13,113.60 is: 18,087.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,411.20 : 26,774.40 = 13,113.60 : x
  2. Step 2: Convert to fraction form
    19,411.20/26,774.40 = 13,113.60/x
  3. Step 3: Cross multiply
    19,411.20x = 26,774.40 × 13,113.60
  4. Step 4: Simplify right side
    19,411.20x = 351,108,771.84
  5. Step 5: Solve for x
    x = 351,108,771.84/19,411.20
  6. Step 6: Final answer
    x = 18,087.95

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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.