Home / 19,157.96-26,450.13-13,118.30

Finding the Fourth Proportional to 19,157.96, 26,450.13 and 13,118.30

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Solution

The fourth proportional to 19,157.96, 26,450.13 and 13,118.30 is: 18,111.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.96 : 26,450.13 = 13,118.30 : x
  2. Step 2: Convert to fraction form
    19,157.96/26,450.13 = 13,118.30/x
  3. Step 3: Cross multiply
    19,157.96x = 26,450.13 × 13,118.30
  4. Step 4: Simplify right side
    19,157.96x = 346,980,790.37
  5. Step 5: Solve for x
    x = 346,980,790.37/19,157.96
  6. Step 6: Final answer
    x = 18,111.58

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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.