Home / 8,929.93-13,396.77-2,690.40

Finding the Fourth Proportional to 8,929.93, 13,396.77 and 2,690.40

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Solution

The fourth proportional to 8,929.93, 13,396.77 and 2,690.40 is: 4,036.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.93 : 13,396.77 = 2,690.40 : x
  2. Step 2: Convert to fraction form
    8,929.93/13,396.77 = 2,690.40/x
  3. Step 3: Cross multiply
    8,929.93x = 13,396.77 × 2,690.40
  4. Step 4: Simplify right side
    8,929.93x = 36,042,670.01
  5. Step 5: Solve for x
    x = 36,042,670.01/8,929.93
  6. Step 6: Final answer
    x = 4,036.16

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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.