Home / 19,145.16-26,421.66-11,188.26

Finding the Fourth Proportional to 19,145.16, 26,421.66 and 11,188.26

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Solution

The fourth proportional to 19,145.16, 26,421.66 and 11,188.26 is: 15,440.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,145.16 : 26,421.66 = 11,188.26 : x
  2. Step 2: Convert to fraction form
    19,145.16/26,421.66 = 11,188.26/x
  3. Step 3: Cross multiply
    19,145.16x = 26,421.66 × 11,188.26
  4. Step 4: Simplify right side
    19,145.16x = 295,612,401.71
  5. Step 5: Solve for x
    x = 295,612,401.71/19,145.16
  6. Step 6: Final answer
    x = 15,440.58

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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.