Home / 18,447.56-25,457.51-10,489.79

Finding the Fourth Proportional to 18,447.56, 25,457.51 and 10,489.79

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Solution

The fourth proportional to 18,447.56, 25,457.51 and 10,489.79 is: 14,475.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.56 : 25,457.51 = 10,489.79 : x
  2. Step 2: Convert to fraction form
    18,447.56/25,457.51 = 10,489.79/x
  3. Step 3: Cross multiply
    18,447.56x = 25,457.51 × 10,489.79
  4. Step 4: Simplify right side
    18,447.56x = 267,043,832.76
  5. Step 5: Solve for x
    x = 267,043,832.76/18,447.56
  6. Step 6: Final answer
    x = 14,475.84

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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.