Home / 13,940.77-19,231.84-8,902.47

Finding the Fourth Proportional to 13,940.77, 19,231.84 and 8,902.47

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Solution

The fourth proportional to 13,940.77, 19,231.84 and 8,902.47 is: 12,281.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.77 : 19,231.84 = 8,902.47 : x
  2. Step 2: Convert to fraction form
    13,940.77/19,231.84 = 8,902.47/x
  3. Step 3: Cross multiply
    13,940.77x = 19,231.84 × 8,902.47
  4. Step 4: Simplify right side
    13,940.77x = 171,210,782.49
  5. Step 5: Solve for x
    x = 171,210,782.49/13,940.77
  6. Step 6: Final answer
    x = 12,281.30

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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.