Home / 12,675.24-18,999.45-4,774.33

Finding the Fourth Proportional to 12,675.24, 18,999.45 and 4,774.33

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Solution

The fourth proportional to 12,675.24, 18,999.45 and 4,774.33 is: 7,156.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,675.24 : 18,999.45 = 4,774.33 : x
  2. Step 2: Convert to fraction form
    12,675.24/18,999.45 = 4,774.33/x
  3. Step 3: Cross multiply
    12,675.24x = 18,999.45 × 4,774.33
  4. Step 4: Simplify right side
    12,675.24x = 90,709,690.06
  5. Step 5: Solve for x
    x = 90,709,690.06/12,675.24
  6. Step 6: Final answer
    x = 7,156.45

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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.