Home / 9,618.97-13,277.72-5,643.43

Finding the Fourth Proportional to 9,618.97, 13,277.72 and 5,643.43

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Solution

The fourth proportional to 9,618.97, 13,277.72 and 5,643.43 is: 7,790.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,618.97 : 13,277.72 = 5,643.43 : x
  2. Step 2: Convert to fraction form
    9,618.97/13,277.72 = 5,643.43/x
  3. Step 3: Cross multiply
    9,618.97x = 13,277.72 × 5,643.43
  4. Step 4: Simplify right side
    9,618.97x = 74,931,883.38
  5. Step 5: Solve for x
    x = 74,931,883.38/9,618.97
  6. Step 6: Final answer
    x = 7,790.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.