Home / 12,491.22-18,739.53-4,700.07

Finding the Fourth Proportional to 12,491.22, 18,739.53 and 4,700.07

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Solution

The fourth proportional to 12,491.22, 18,739.53 and 4,700.07 is: 7,051.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491.22 : 18,739.53 = 4,700.07 : x
  2. Step 2: Convert to fraction form
    12,491.22/18,739.53 = 4,700.07/x
  3. Step 3: Cross multiply
    12,491.22x = 18,739.53 × 4,700.07
  4. Step 4: Simplify right side
    12,491.22x = 88,077,102.77
  5. Step 5: Solve for x
    x = 88,077,102.77/12,491.22
  6. Step 6: Final answer
    x = 7,051.12

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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.