Home / 14,039.21-19,373.81-7,665.99

Finding the Fourth Proportional to 14,039.21, 19,373.81 and 7,665.99

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Solution

The fourth proportional to 14,039.21, 19,373.81 and 7,665.99 is: 10,578.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,039.21 : 19,373.81 = 7,665.99 : x
  2. Step 2: Convert to fraction form
    14,039.21/19,373.81 = 7,665.99/x
  3. Step 3: Cross multiply
    14,039.21x = 19,373.81 × 7,665.99
  4. Step 4: Simplify right side
    14,039.21x = 148,519,330.68
  5. Step 5: Solve for x
    x = 148,519,330.68/14,039.21
  6. Step 6: Final answer
    x = 10,578.89

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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.