Home / 13,867.44-19,136.64-7,899.96

Finding the Fourth Proportional to 13,867.44, 19,136.64 and 7,899.96

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Solution

The fourth proportional to 13,867.44, 19,136.64 and 7,899.96 is: 10,901.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.44 : 19,136.64 = 7,899.96 : x
  2. Step 2: Convert to fraction form
    13,867.44/19,136.64 = 7,899.96/x
  3. Step 3: Cross multiply
    13,867.44x = 19,136.64 × 7,899.96
  4. Step 4: Simplify right side
    13,867.44x = 151,178,690.53
  5. Step 5: Solve for x
    x = 151,178,690.53/13,867.44
  6. Step 6: Final answer
    x = 10,901.70

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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.