Home / 14,122.86-19,491.21-7,835.64

Finding the Fourth Proportional to 14,122.86, 19,491.21 and 7,835.64

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Solution

The fourth proportional to 14,122.86, 19,491.21 and 7,835.64 is: 10,814.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.86 : 19,491.21 = 7,835.64 : x
  2. Step 2: Convert to fraction form
    14,122.86/19,491.21 = 7,835.64/x
  3. Step 3: Cross multiply
    14,122.86x = 19,491.21 × 7,835.64
  4. Step 4: Simplify right side
    14,122.86x = 152,726,104.72
  5. Step 5: Solve for x
    x = 152,726,104.72/14,122.86
  6. Step 6: Final answer
    x = 10,814.11

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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.