Home / 14,651.81-21,973.16-5,290.61

Finding the Fourth Proportional to 14,651.81, 21,973.16 and 5,290.61

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Solution

The fourth proportional to 14,651.81, 21,973.16 and 5,290.61 is: 7,934.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.81 : 21,973.16 = 5,290.61 : x
  2. Step 2: Convert to fraction form
    14,651.81/21,973.16 = 5,290.61/x
  3. Step 3: Cross multiply
    14,651.81x = 21,973.16 × 5,290.61
  4. Step 4: Simplify right side
    14,651.81x = 116,251,283.71
  5. Step 5: Solve for x
    x = 116,251,283.71/14,651.81
  6. Step 6: Final answer
    x = 7,934.26

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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.