Home / 15,629.54-21,568.58-8,459.30

Finding the Fourth Proportional to 15,629.54, 21,568.58 and 8,459.30

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Solution

The fourth proportional to 15,629.54, 21,568.58 and 8,459.30 is: 11,673.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.54 : 21,568.58 = 8,459.30 : x
  2. Step 2: Convert to fraction form
    15,629.54/21,568.58 = 8,459.30/x
  3. Step 3: Cross multiply
    15,629.54x = 21,568.58 × 8,459.30
  4. Step 4: Simplify right side
    15,629.54x = 182,455,088.79
  5. Step 5: Solve for x
    x = 182,455,088.79/15,629.54
  6. Step 6: Final answer
    x = 11,673.73

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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.