Home / 13,206.21-19,806.84-6,630.63

Finding the Fourth Proportional to 13,206.21, 19,806.84 and 6,630.63

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Solution

The fourth proportional to 13,206.21, 19,806.84 and 6,630.63 is: 9,944.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.21 : 19,806.84 = 6,630.63 : x
  2. Step 2: Convert to fraction form
    13,206.21/19,806.84 = 6,630.63/x
  3. Step 3: Cross multiply
    13,206.21x = 19,806.84 × 6,630.63
  4. Step 4: Simplify right side
    13,206.21x = 131,331,827.51
  5. Step 5: Solve for x
    x = 131,331,827.51/13,206.21
  6. Step 6: Final answer
    x = 9,944.70

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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.