Home / 18,903.06-26,042.55-13,588.68

Finding the Fourth Proportional to 18,903.06, 26,042.55 and 13,588.68

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Solution

The fourth proportional to 18,903.06, 26,042.55 and 13,588.68 is: 18,720.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903.06 : 26,042.55 = 13,588.68 : x
  2. Step 2: Convert to fraction form
    18,903.06/26,042.55 = 13,588.68/x
  3. Step 3: Cross multiply
    18,903.06x = 26,042.55 × 13,588.68
  4. Step 4: Simplify right side
    18,903.06x = 353,883,878.33
  5. Step 5: Solve for x
    x = 353,883,878.33/18,903.06
  6. Step 6: Final answer
    x = 18,720.98

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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.