Home / 13,992.49-20,983.70-4,630.78

Finding the Fourth Proportional to 13,992.49, 20,983.70 and 4,630.78

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Solution

The fourth proportional to 13,992.49, 20,983.70 and 4,630.78 is: 6,944.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.49 : 20,983.70 = 4,630.78 : x
  2. Step 2: Convert to fraction form
    13,992.49/20,983.70 = 4,630.78/x
  3. Step 3: Cross multiply
    13,992.49x = 20,983.70 × 4,630.78
  4. Step 4: Simplify right side
    13,992.49x = 97,170,898.29
  5. Step 5: Solve for x
    x = 97,170,898.29/13,992.49
  6. Step 6: Final answer
    x = 6,944.50

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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.