Home / 19,220.18-26,525.75-11,665.91

Finding the Fourth Proportional to 19,220.18, 26,525.75 and 11,665.91

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Solution

The fourth proportional to 19,220.18, 26,525.75 and 11,665.91 is: 16,100.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.18 : 26,525.75 = 11,665.91 : x
  2. Step 2: Convert to fraction form
    19,220.18/26,525.75 = 11,665.91/x
  3. Step 3: Cross multiply
    19,220.18x = 26,525.75 × 11,665.91
  4. Step 4: Simplify right side
    19,220.18x = 309,447,020.17
  5. Step 5: Solve for x
    x = 309,447,020.17/19,220.18
  6. Step 6: Final answer
    x = 16,100.11

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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.