Home / 13,835.58-19,095.75-12,991.56

Finding the Fourth Proportional to 13,835.58, 19,095.75 and 12,991.56

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Solution

The fourth proportional to 13,835.58, 19,095.75 and 12,991.56 is: 17,930.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,835.58 : 19,095.75 = 12,991.56 : x
  2. Step 2: Convert to fraction form
    13,835.58/19,095.75 = 12,991.56/x
  3. Step 3: Cross multiply
    13,835.58x = 19,095.75 × 12,991.56
  4. Step 4: Simplify right side
    13,835.58x = 248,083,581.87
  5. Step 5: Solve for x
    x = 248,083,581.87/13,835.58
  6. Step 6: Final answer
    x = 17,930.84

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1.5x scale

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.