Home / 14,115.24-19,477.96-7,740.81

Finding the Fourth Proportional to 14,115.24, 19,477.96 and 7,740.81

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Solution

The fourth proportional to 14,115.24, 19,477.96 and 7,740.81 is: 10,681.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.24 : 19,477.96 = 7,740.81 : x
  2. Step 2: Convert to fraction form
    14,115.24/19,477.96 = 7,740.81/x
  3. Step 3: Cross multiply
    14,115.24x = 19,477.96 × 7,740.81
  4. Step 4: Simplify right side
    14,115.24x = 150,775,187.55
  5. Step 5: Solve for x
    x = 150,775,187.55/14,115.24
  6. Step 6: Final answer
    x = 10,681.73

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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.