Home / 18,945.34-26,124.06-12,899.50

Finding the Fourth Proportional to 18,945.34, 26,124.06 and 12,899.50

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Solution

The fourth proportional to 18,945.34, 26,124.06 and 12,899.50 is: 17,787.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945.34 : 26,124.06 = 12,899.50 : x
  2. Step 2: Convert to fraction form
    18,945.34/26,124.06 = 12,899.50/x
  3. Step 3: Cross multiply
    18,945.34x = 26,124.06 × 12,899.50
  4. Step 4: Simplify right side
    18,945.34x = 336,987,311.97
  5. Step 5: Solve for x
    x = 336,987,311.97/18,945.34
  6. Step 6: Final answer
    x = 17,787.35

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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.