Home / 14,172.36-21,259.08-7,238.76

Finding the Fourth Proportional to 14,172.36, 21,259.08 and 7,238.76

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Solution

The fourth proportional to 14,172.36, 21,259.08 and 7,238.76 is: 10,858.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,172.36 : 21,259.08 = 7,238.76 : x
  2. Step 2: Convert to fraction form
    14,172.36/21,259.08 = 7,238.76/x
  3. Step 3: Cross multiply
    14,172.36x = 21,259.08 × 7,238.76
  4. Step 4: Simplify right side
    14,172.36x = 153,889,377.94
  5. Step 5: Solve for x
    x = 153,889,377.94/14,172.36
  6. Step 6: Final answer
    x = 10,858.42

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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.