Home / 19,519.60-26,935.32-11,561.84

Finding the Fourth Proportional to 19,519.60, 26,935.32 and 11,561.84

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Solution

The fourth proportional to 19,519.60, 26,935.32 and 11,561.84 is: 15,954.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,519.60 : 26,935.32 = 11,561.84 : x
  2. Step 2: Convert to fraction form
    19,519.60/26,935.32 = 11,561.84/x
  3. Step 3: Cross multiply
    19,519.60x = 26,935.32 × 11,561.84
  4. Step 4: Simplify right side
    19,519.60x = 311,421,860.19
  5. Step 5: Solve for x
    x = 311,421,860.19/19,519.60
  6. Step 6: Final answer
    x = 15,954.32

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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.