Home / 18,962.19-26,138.03-12,983.52

Finding the Fourth Proportional to 18,962.19, 26,138.03 and 12,983.52

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Solution

The fourth proportional to 18,962.19, 26,138.03 and 12,983.52 is: 17,896.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,962.19 : 26,138.03 = 12,983.52 : x
  2. Step 2: Convert to fraction form
    18,962.19/26,138.03 = 12,983.52/x
  3. Step 3: Cross multiply
    18,962.19x = 26,138.03 × 12,983.52
  4. Step 4: Simplify right side
    18,962.19x = 339,363,570.35
  5. Step 5: Solve for x
    x = 339,363,570.35/18,962.19
  6. Step 6: Final answer
    x = 17,896.86

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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.