Home / 12,835.76-19,236.90-7,291.58

Finding the Fourth Proportional to 12,835.76, 19,236.90 and 7,291.58

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Solution

The fourth proportional to 12,835.76, 19,236.90 and 7,291.58 is: 10,927.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,835.76 : 19,236.90 = 7,291.58 : x
  2. Step 2: Convert to fraction form
    12,835.76/19,236.90 = 7,291.58/x
  3. Step 3: Cross multiply
    12,835.76x = 19,236.90 × 7,291.58
  4. Step 4: Simplify right side
    12,835.76x = 140,267,395.30
  5. Step 5: Solve for x
    x = 140,267,395.30/12,835.76
  6. Step 6: Final answer
    x = 10,927.86

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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.