Home / 13,235.64-19,752.94-12,699.84

Finding the Fourth Proportional to 13,235.64, 19,752.94 and 12,699.84

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Solution

The fourth proportional to 13,235.64, 19,752.94 and 12,699.84 is: 18,953.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.64 : 19,752.94 = 12,699.84 : x
  2. Step 2: Convert to fraction form
    13,235.64/19,752.94 = 12,699.84/x
  3. Step 3: Cross multiply
    13,235.64x = 19,752.94 × 12,699.84
  4. Step 4: Simplify right side
    13,235.64x = 250,859,177.53
  5. Step 5: Solve for x
    x = 250,859,177.53/13,235.64
  6. Step 6: Final answer
    x = 18,953.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.