Home / 12,054.68-18,012.90-9,189.32

Finding the Fourth Proportional to 12,054.68, 18,012.90 and 9,189.32

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Solution

The fourth proportional to 12,054.68, 18,012.90 and 9,189.32 is: 13,731.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,054.68 : 18,012.90 = 9,189.32 : x
  2. Step 2: Convert to fraction form
    12,054.68/18,012.90 = 9,189.32/x
  3. Step 3: Cross multiply
    12,054.68x = 18,012.90 × 9,189.32
  4. Step 4: Simplify right side
    12,054.68x = 165,526,302.23
  5. Step 5: Solve for x
    x = 165,526,302.23/12,054.68
  6. Step 6: Final answer
    x = 13,731.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.