Home / 14,666.81-21,990.49-5,305.59

Finding the Fourth Proportional to 14,666.81, 21,990.49 and 5,305.59

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Solution

The fourth proportional to 14,666.81, 21,990.49 and 5,305.59 is: 7,954.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,666.81 : 21,990.49 = 5,305.59 : x
  2. Step 2: Convert to fraction form
    14,666.81/21,990.49 = 5,305.59/x
  3. Step 3: Cross multiply
    14,666.81x = 21,990.49 × 5,305.59
  4. Step 4: Simplify right side
    14,666.81x = 116,672,497.31
  5. Step 5: Solve for x
    x = 116,672,497.31/14,666.81
  6. Step 6: Final answer
    x = 7,954.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.