Home / 15,457.24-21,330.42-8,383.51

Finding the Fourth Proportional to 15,457.24, 21,330.42 and 8,383.51

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Solution

The fourth proportional to 15,457.24, 21,330.42 and 8,383.51 is: 11,568.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,457.24 : 21,330.42 = 8,383.51 : x
  2. Step 2: Convert to fraction form
    15,457.24/21,330.42 = 8,383.51/x
  3. Step 3: Cross multiply
    15,457.24x = 21,330.42 × 8,383.51
  4. Step 4: Simplify right side
    15,457.24x = 178,823,784.60
  5. Step 5: Solve for x
    x = 178,823,784.60/15,457.24
  6. Step 6: Final answer
    x = 11,568.93

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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.