Home / 12,289.38-18,434.13-3,055.38

Finding the Fourth Proportional to 12,289.38, 18,434.13 and 3,055.38

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Solution

The fourth proportional to 12,289.38, 18,434.13 and 3,055.38 is: 4,583.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,289.38 : 18,434.13 = 3,055.38 : x
  2. Step 2: Convert to fraction form
    12,289.38/18,434.13 = 3,055.38/x
  3. Step 3: Cross multiply
    12,289.38x = 18,434.13 × 3,055.38
  4. Step 4: Simplify right side
    12,289.38x = 56,323,272.12
  5. Step 5: Solve for x
    x = 56,323,272.12/12,289.38
  6. Step 6: Final answer
    x = 4,583.08

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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.