Home / 17,901.72-26,856.99-12,647.07

Finding the Fourth Proportional to 17,901.72, 26,856.99 and 12,647.07

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Solution

The fourth proportional to 17,901.72, 26,856.99 and 12,647.07 is: 18,973.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,901.72 : 26,856.99 = 12,647.07 : x
  2. Step 2: Convert to fraction form
    17,901.72/26,856.99 = 12,647.07/x
  3. Step 3: Cross multiply
    17,901.72x = 26,856.99 × 12,647.07
  4. Step 4: Simplify right side
    17,901.72x = 339,662,232.52
  5. Step 5: Solve for x
    x = 339,662,232.52/17,901.72
  6. Step 6: Final answer
    x = 18,973.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.