Home / 12,555.84-18,821.52-5,980.26

Finding the Fourth Proportional to 12,555.84, 18,821.52 and 5,980.26

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Solution

The fourth proportional to 12,555.84, 18,821.52 and 5,980.26 is: 8,964.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.84 : 18,821.52 = 5,980.26 : x
  2. Step 2: Convert to fraction form
    12,555.84/18,821.52 = 5,980.26/x
  3. Step 3: Cross multiply
    12,555.84x = 18,821.52 × 5,980.26
  4. Step 4: Simplify right side
    12,555.84x = 112,557,583.20
  5. Step 5: Solve for x
    x = 112,557,583.20/12,555.84
  6. Step 6: Final answer
    x = 8,964.56

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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.