Home / 12,835.58-19,225.36-7,890.24

Finding the Fourth Proportional to 12,835.58, 19,225.36 and 7,890.24

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Solution

The fourth proportional to 12,835.58, 19,225.36 and 7,890.24 is: 11,818.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,835.58 : 19,225.36 = 7,890.24 : x
  2. Step 2: Convert to fraction form
    12,835.58/19,225.36 = 7,890.24/x
  3. Step 3: Cross multiply
    12,835.58x = 19,225.36 × 7,890.24
  4. Step 4: Simplify right side
    12,835.58x = 151,692,704.49
  5. Step 5: Solve for x
    x = 151,692,704.49/12,835.58
  6. Step 6: Final answer
    x = 11,818.14

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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.