Home / 19,158.90-26,439.41-11,199.53

Finding the Fourth Proportional to 19,158.90, 26,439.41 and 11,199.53

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Solution

The fourth proportional to 19,158.90, 26,439.41 and 11,199.53 is: 15,455.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,158.90 : 26,439.41 = 11,199.53 : x
  2. Step 2: Convert to fraction form
    19,158.90/26,439.41 = 11,199.53/x
  3. Step 3: Cross multiply
    19,158.90x = 26,439.41 × 11,199.53
  4. Step 4: Simplify right side
    19,158.90x = 296,108,777.28
  5. Step 5: Solve for x
    x = 296,108,777.28/19,158.90
  6. Step 6: Final answer
    x = 15,455.42

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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.