Home / 13,867.12-19,136.82-7,898.77

Finding the Fourth Proportional to 13,867.12, 19,136.82 and 7,898.77

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Solution

The fourth proportional to 13,867.12, 19,136.82 and 7,898.77 is: 10,900.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.12 : 19,136.82 = 7,898.77 : x
  2. Step 2: Convert to fraction form
    13,867.12/19,136.82 = 7,898.77/x
  3. Step 3: Cross multiply
    13,867.12x = 19,136.82 × 7,898.77
  4. Step 4: Simplify right side
    13,867.12x = 151,157,339.71
  5. Step 5: Solve for x
    x = 151,157,339.71/13,867.12
  6. Step 6: Final answer
    x = 10,900.41

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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.