Home / 12,042.86-18,065.09-4,647.38

Finding the Fourth Proportional to 12,042.86, 18,065.09 and 4,647.38

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Solution

The fourth proportional to 12,042.86, 18,065.09 and 4,647.38 is: 6,971.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,042.86 : 18,065.09 = 4,647.38 : x
  2. Step 2: Convert to fraction form
    12,042.86/18,065.09 = 4,647.38/x
  3. Step 3: Cross multiply
    12,042.86x = 18,065.09 × 4,647.38
  4. Step 4: Simplify right side
    12,042.86x = 83,955,259.26
  5. Step 5: Solve for x
    x = 83,955,259.26/12,042.86
  6. Step 6: Final answer
    x = 6,971.38

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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.