Home / 14,231.21-19,639.05-7,943.59

Finding the Fourth Proportional to 14,231.21, 19,639.05 and 7,943.59

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Solution

The fourth proportional to 14,231.21, 19,639.05 and 7,943.59 is: 10,962.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,231.21 : 19,639.05 = 7,943.59 : x
  2. Step 2: Convert to fraction form
    14,231.21/19,639.05 = 7,943.59/x
  3. Step 3: Cross multiply
    14,231.21x = 19,639.05 × 7,943.59
  4. Step 4: Simplify right side
    14,231.21x = 156,004,462.99
  5. Step 5: Solve for x
    x = 156,004,462.99/14,231.21
  6. Step 6: Final answer
    x = 10,962.14

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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.