Home / 14,122.89-19,490.28-7,835.25

Finding the Fourth Proportional to 14,122.89, 19,490.28 and 7,835.25

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Solution

The fourth proportional to 14,122.89, 19,490.28 and 7,835.25 is: 10,813.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.89 : 19,490.28 = 7,835.25 : x
  2. Step 2: Convert to fraction form
    14,122.89/19,490.28 = 7,835.25/x
  3. Step 3: Cross multiply
    14,122.89x = 19,490.28 × 7,835.25
  4. Step 4: Simplify right side
    14,122.89x = 152,711,216.37
  5. Step 5: Solve for x
    x = 152,711,216.37/14,122.89
  6. Step 6: Final answer
    x = 10,813.03

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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.