Home / 13,915.06-19,088.42-13,161.82

Finding the Fourth Proportional to 13,915.06, 19,088.42 and 13,161.82

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Solution

The fourth proportional to 13,915.06, 19,088.42 and 13,161.82 is: 18,055.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.06 : 19,088.42 = 13,161.82 : x
  2. Step 2: Convert to fraction form
    13,915.06/19,088.42 = 13,161.82/x
  3. Step 3: Cross multiply
    13,915.06x = 19,088.42 × 13,161.82
  4. Step 4: Simplify right side
    13,915.06x = 251,238,282.32
  5. Step 5: Solve for x
    x = 251,238,282.32/13,915.06
  6. Step 6: Final answer
    x = 18,055.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.