Home / 9,219.60-13,828-2,646.08

Finding the Fourth Proportional to 9,219.60, 13,828 and 2,646.08

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Solution

The fourth proportional to 9,219.60, 13,828 and 2,646.08 is: 3,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.60 : 13,828 = 2,646.08 : x
  2. Step 2: Convert to fraction form
    9,219.60/13,828 = 2,646.08/x
  3. Step 3: Cross multiply
    9,219.60x = 13,828 × 2,646.08
  4. Step 4: Simplify right side
    9,219.60x = 36,589,994.24
  5. Step 5: Solve for x
    x = 36,589,994.24/9,219.60
  6. Step 6: Final answer
    x = 3,968.72

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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.