Home / 19,130.88-28,690.74-7,441.32

Finding the Fourth Proportional to 19,130.88, 28,690.74 and 7,441.32

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Solution

The fourth proportional to 19,130.88, 28,690.74 and 7,441.32 is: 11,159.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.88 : 28,690.74 = 7,441.32 : x
  2. Step 2: Convert to fraction form
    19,130.88/28,690.74 = 7,441.32/x
  3. Step 3: Cross multiply
    19,130.88x = 28,690.74 × 7,441.32
  4. Step 4: Simplify right side
    19,130.88x = 213,496,977.38
  5. Step 5: Solve for x
    x = 213,496,977.38/19,130.88
  6. Step 6: Final answer
    x = 11,159.81

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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.