Home / 12,045.35-18,067.93-9,415.07

Finding the Fourth Proportional to 12,045.35, 18,067.93 and 9,415.07

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Solution

The fourth proportional to 12,045.35, 18,067.93 and 9,415.07 is: 14,122.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.35 : 18,067.93 = 9,415.07 : x
  2. Step 2: Convert to fraction form
    12,045.35/18,067.93 = 9,415.07/x
  3. Step 3: Cross multiply
    12,045.35x = 18,067.93 × 9,415.07
  4. Step 4: Simplify right side
    12,045.35x = 170,110,688.29
  5. Step 5: Solve for x
    x = 170,110,688.29/12,045.35
  6. Step 6: Final answer
    x = 14,122.52

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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.