Home / 19,119.88-26,395.03-11,953.78

Finding the Fourth Proportional to 19,119.88, 26,395.03 and 11,953.78

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Solution

The fourth proportional to 19,119.88, 26,395.03 and 11,953.78 is: 16,502.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.88 : 26,395.03 = 11,953.78 : x
  2. Step 2: Convert to fraction form
    19,119.88/26,395.03 = 11,953.78/x
  3. Step 3: Cross multiply
    19,119.88x = 26,395.03 × 11,953.78
  4. Step 4: Simplify right side
    19,119.88x = 315,520,381.71
  5. Step 5: Solve for x
    x = 315,520,381.71/19,119.88
  6. Step 6: Final answer
    x = 16,502.22

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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.