Home / 19,561.84-26,995.08-11,178.16

Finding the Fourth Proportional to 19,561.84, 26,995.08 and 11,178.16

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Solution

The fourth proportional to 19,561.84, 26,995.08 and 11,178.16 is: 15,425.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561.84 : 26,995.08 = 11,178.16 : x
  2. Step 2: Convert to fraction form
    19,561.84/26,995.08 = 11,178.16/x
  3. Step 3: Cross multiply
    19,561.84x = 26,995.08 × 11,178.16
  4. Step 4: Simplify right side
    19,561.84x = 301,755,323.45
  5. Step 5: Solve for x
    x = 301,755,323.45/19,561.84
  6. Step 6: Final answer
    x = 15,425.71

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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.