Home / 15,622.74-21,558.69-8,549.46

Finding the Fourth Proportional to 15,622.74, 21,558.69 and 8,549.46

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Solution

The fourth proportional to 15,622.74, 21,558.69 and 8,549.46 is: 11,797.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,622.74 : 21,558.69 = 8,549.46 : x
  2. Step 2: Convert to fraction form
    15,622.74/21,558.69 = 8,549.46/x
  3. Step 3: Cross multiply
    15,622.74x = 21,558.69 × 8,549.46
  4. Step 4: Simplify right side
    15,622.74x = 184,315,157.81
  5. Step 5: Solve for x
    x = 184,315,157.81/15,622.74
  6. Step 6: Final answer
    x = 11,797.88

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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.