Home / 18,865.55-26,036.51-11,693.55

Finding the Fourth Proportional to 18,865.55, 26,036.51 and 11,693.55

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Solution

The fourth proportional to 18,865.55, 26,036.51 and 11,693.55 is: 16,138.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,865.55 : 26,036.51 = 11,693.55 : x
  2. Step 2: Convert to fraction form
    18,865.55/26,036.51 = 11,693.55/x
  3. Step 3: Cross multiply
    18,865.55x = 26,036.51 × 11,693.55
  4. Step 4: Simplify right side
    18,865.55x = 304,459,173.04
  5. Step 5: Solve for x
    x = 304,459,173.04/18,865.55
  6. Step 6: Final answer
    x = 16,138.37

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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.