Home / 19,276.90-28,918.64-6,626.05

Finding the Fourth Proportional to 19,276.90, 28,918.64 and 6,626.05

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Solution

The fourth proportional to 19,276.90, 28,918.64 and 6,626.05 is: 9,940.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,276.90 : 28,918.64 = 6,626.05 : x
  2. Step 2: Convert to fraction form
    19,276.90/28,918.64 = 6,626.05/x
  3. Step 3: Cross multiply
    19,276.90x = 28,918.64 × 6,626.05
  4. Step 4: Simplify right side
    19,276.90x = 191,616,298.84
  5. Step 5: Solve for x
    x = 191,616,298.84/19,276.90
  6. Step 6: Final answer
    x = 9,940.20

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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.