Home / 18,407.31-25,403.40-10,450.07

Finding the Fourth Proportional to 18,407.31, 25,403.40 and 10,450.07

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Solution

The fourth proportional to 18,407.31, 25,403.40 and 10,450.07 is: 14,421.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.31 : 25,403.40 = 10,450.07 : x
  2. Step 2: Convert to fraction form
    18,407.31/25,403.40 = 10,450.07/x
  3. Step 3: Cross multiply
    18,407.31x = 25,403.40 × 10,450.07
  4. Step 4: Simplify right side
    18,407.31x = 265,467,181.22
  5. Step 5: Solve for x
    x = 265,467,181.22/18,407.31
  6. Step 6: Final answer
    x = 14,421.83

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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.