Home / 12,282.06-18,424.44-3,518.40

Finding the Fourth Proportional to 12,282.06, 18,424.44 and 3,518.40

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Solution

The fourth proportional to 12,282.06, 18,424.44 and 3,518.40 is: 5,277.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.06 : 18,424.44 = 3,518.40 : x
  2. Step 2: Convert to fraction form
    12,282.06/18,424.44 = 3,518.40/x
  3. Step 3: Cross multiply
    12,282.06x = 18,424.44 × 3,518.40
  4. Step 4: Simplify right side
    12,282.06x = 64,824,549.70
  5. Step 5: Solve for x
    x = 64,824,549.70/12,282.06
  6. Step 6: Final answer
    x = 5,277.99

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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.