Home / 18,235.98-25,162.08-11,157.38

Finding the Fourth Proportional to 18,235.98, 25,162.08 and 11,157.38

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Solution

The fourth proportional to 18,235.98, 25,162.08 and 11,157.38 is: 15,395.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,235.98 : 25,162.08 = 11,157.38 : x
  2. Step 2: Convert to fraction form
    18,235.98/25,162.08 = 11,157.38/x
  3. Step 3: Cross multiply
    18,235.98x = 25,162.08 × 11,157.38
  4. Step 4: Simplify right side
    18,235.98x = 280,742,888.15
  5. Step 5: Solve for x
    x = 280,742,888.15/18,235.98
  6. Step 6: Final answer
    x = 15,395.00

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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.