Home / 9,622.56-13,278.84-5,643.60

Finding the Fourth Proportional to 9,622.56, 13,278.84 and 5,643.60

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Solution

The fourth proportional to 9,622.56, 13,278.84 and 5,643.60 is: 7,788.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,622.56 : 13,278.84 = 5,643.60 : x
  2. Step 2: Convert to fraction form
    9,622.56/13,278.84 = 5,643.60/x
  3. Step 3: Cross multiply
    9,622.56x = 13,278.84 × 5,643.60
  4. Step 4: Simplify right side
    9,622.56x = 74,940,461.42
  5. Step 5: Solve for x
    x = 74,940,461.42/9,622.56
  6. Step 6: Final answer
    x = 7,788.00

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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.