Home / 12,821.51-19,244.34-9,267.19

Finding the Fourth Proportional to 12,821.51, 19,244.34 and 9,267.19

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Solution

The fourth proportional to 12,821.51, 19,244.34 and 9,267.19 is: 13,909.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821.51 : 19,244.34 = 9,267.19 : x
  2. Step 2: Convert to fraction form
    12,821.51/19,244.34 = 9,267.19/x
  3. Step 3: Cross multiply
    12,821.51x = 19,244.34 × 9,267.19
  4. Step 4: Simplify right side
    12,821.51x = 178,340,907.09
  5. Step 5: Solve for x
    x = 178,340,907.09/12,821.51
  6. Step 6: Final answer
    x = 13,909.51

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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.