Home / 13,878.48-19,150.58-8,840.63

Finding the Fourth Proportional to 13,878.48, 19,150.58 and 8,840.63

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Solution

The fourth proportional to 13,878.48, 19,150.58 and 8,840.63 is: 12,198.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,878.48 : 19,150.58 = 8,840.63 : x
  2. Step 2: Convert to fraction form
    13,878.48/19,150.58 = 8,840.63/x
  3. Step 3: Cross multiply
    13,878.48x = 19,150.58 × 8,840.63
  4. Step 4: Simplify right side
    13,878.48x = 169,303,192.07
  5. Step 5: Solve for x
    x = 169,303,192.07/13,878.48
  6. Step 6: Final answer
    x = 12,198.97

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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.