Home / 19,178.88-26,453.21-12,802.25

Finding the Fourth Proportional to 19,178.88, 26,453.21 and 12,802.25

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Solution

The fourth proportional to 19,178.88, 26,453.21 and 12,802.25 is: 17,658.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178.88 : 26,453.21 = 12,802.25 : x
  2. Step 2: Convert to fraction form
    19,178.88/26,453.21 = 12,802.25/x
  3. Step 3: Cross multiply
    19,178.88x = 26,453.21 × 12,802.25
  4. Step 4: Simplify right side
    19,178.88x = 338,660,607.72
  5. Step 5: Solve for x
    x = 338,660,607.72/19,178.88
  6. Step 6: Final answer
    x = 17,658.00

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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.