Home / 13,867.06-19,136.54-7,898.71

Finding the Fourth Proportional to 13,867.06, 19,136.54 and 7,898.71

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Solution

The fourth proportional to 13,867.06, 19,136.54 and 7,898.71 is: 10,900.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.06 : 19,136.54 = 7,898.71 : x
  2. Step 2: Convert to fraction form
    13,867.06/19,136.54 = 7,898.71/x
  3. Step 3: Cross multiply
    13,867.06x = 19,136.54 × 7,898.71
  4. Step 4: Simplify right side
    13,867.06x = 151,153,940.37
  5. Step 5: Solve for x
    x = 151,153,940.37/13,867.06
  6. Step 6: Final answer
    x = 10,900.22

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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.