Home / 14,072.52-21,085.36-9,903.79

Finding the Fourth Proportional to 14,072.52, 21,085.36 and 9,903.79

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Solution

The fourth proportional to 14,072.52, 21,085.36 and 9,903.79 is: 14,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.52 : 21,085.36 = 9,903.79 : x
  2. Step 2: Convert to fraction form
    14,072.52/21,085.36 = 9,903.79/x
  3. Step 3: Cross multiply
    14,072.52x = 21,085.36 × 9,903.79
  4. Step 4: Simplify right side
    14,072.52x = 208,824,977.51
  5. Step 5: Solve for x
    x = 208,824,977.51/14,072.52
  6. Step 6: Final answer
    x = 14,839.20

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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.