Home / 19,389.15-26,759.57-11,432.12

Finding the Fourth Proportional to 19,389.15, 26,759.57 and 11,432.12

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Solution

The fourth proportional to 19,389.15, 26,759.57 and 11,432.12 is: 15,777.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.15 : 26,759.57 = 11,432.12 : x
  2. Step 2: Convert to fraction form
    19,389.15/26,759.57 = 11,432.12/x
  3. Step 3: Cross multiply
    19,389.15x = 26,759.57 × 11,432.12
  4. Step 4: Simplify right side
    19,389.15x = 305,918,424.43
  5. Step 5: Solve for x
    x = 305,918,424.43/19,389.15
  6. Step 6: Final answer
    x = 15,777.82

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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.