Home / 12,017.79-18,036.09-8,345.84

Finding the Fourth Proportional to 12,017.79, 18,036.09 and 8,345.84

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Solution

The fourth proportional to 12,017.79, 18,036.09 and 8,345.84 is: 12,525.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,017.79 : 18,036.09 = 8,345.84 : x
  2. Step 2: Convert to fraction form
    12,017.79/18,036.09 = 8,345.84/x
  3. Step 3: Cross multiply
    12,017.79x = 18,036.09 × 8,345.84
  4. Step 4: Simplify right side
    12,017.79x = 150,526,231.19
  5. Step 5: Solve for x
    x = 150,526,231.19/12,017.79
  6. Step 6: Final answer
    x = 12,525.28

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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.