Home / 13,400.36-18,489.83-8,095.47

Finding the Fourth Proportional to 13,400.36, 18,489.83 and 8,095.47

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Solution

The fourth proportional to 13,400.36, 18,489.83 and 8,095.47 is: 11,170.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.36 : 18,489.83 = 8,095.47 : x
  2. Step 2: Convert to fraction form
    13,400.36/18,489.83 = 8,095.47/x
  3. Step 3: Cross multiply
    13,400.36x = 18,489.83 × 8,095.47
  4. Step 4: Simplify right side
    13,400.36x = 149,683,864.07
  5. Step 5: Solve for x
    x = 149,683,864.07/13,400.36
  6. Step 6: Final answer
    x = 11,170.14

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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.