Home / 9,218.50-13,823.70-2,643.20

Finding the Fourth Proportional to 9,218.50, 13,823.70 and 2,643.20

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Solution

The fourth proportional to 9,218.50, 13,823.70 and 2,643.20 is: 3,963.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,218.50 : 13,823.70 = 2,643.20 : x
  2. Step 2: Convert to fraction form
    9,218.50/13,823.70 = 2,643.20/x
  3. Step 3: Cross multiply
    9,218.50x = 13,823.70 × 2,643.20
  4. Step 4: Simplify right side
    9,218.50x = 36,538,803.84
  5. Step 5: Solve for x
    x = 36,538,803.84/9,218.50
  6. Step 6: Final answer
    x = 3,963.64

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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.