Home / 12,319.88-16,997.26-7,013.40

Finding the Fourth Proportional to 12,319.88, 16,997.26 and 7,013.40

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Solution

The fourth proportional to 12,319.88, 16,997.26 and 7,013.40 is: 9,676.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319.88 : 16,997.26 = 7,013.40 : x
  2. Step 2: Convert to fraction form
    12,319.88/16,997.26 = 7,013.40/x
  3. Step 3: Cross multiply
    12,319.88x = 16,997.26 × 7,013.40
  4. Step 4: Simplify right side
    12,319.88x = 119,208,583.28
  5. Step 5: Solve for x
    x = 119,208,583.28/12,319.88
  6. Step 6: Final answer
    x = 9,676.12

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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.