Home / 13,606.10-18,778.47-8,303.99

Finding the Fourth Proportional to 13,606.10, 18,778.47 and 8,303.99

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Solution

The fourth proportional to 13,606.10, 18,778.47 and 8,303.99 is: 11,460.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.10 : 18,778.47 = 8,303.99 : x
  2. Step 2: Convert to fraction form
    13,606.10/18,778.47 = 8,303.99/x
  3. Step 3: Cross multiply
    13,606.10x = 18,778.47 × 8,303.99
  4. Step 4: Simplify right side
    13,606.10x = 155,936,295.54
  5. Step 5: Solve for x
    x = 155,936,295.54/13,606.10
  6. Step 6: Final answer
    x = 11,460.76

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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.