Home / 19,317.07-28,981.82-8,790.85

Finding the Fourth Proportional to 19,317.07, 28,981.82 and 8,790.85

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Solution

The fourth proportional to 19,317.07, 28,981.82 and 8,790.85 is: 13,189.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,317.07 : 28,981.82 = 8,790.85 : x
  2. Step 2: Convert to fraction form
    19,317.07/28,981.82 = 8,790.85/x
  3. Step 3: Cross multiply
    19,317.07x = 28,981.82 × 8,790.85
  4. Step 4: Simplify right side
    19,317.07x = 254,774,832.35
  5. Step 5: Solve for x
    x = 254,774,832.35/19,317.07
  6. Step 6: Final answer
    x = 13,189.10

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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.