Home / 13,798.08-19,045.44-8,422.56

Finding the Fourth Proportional to 13,798.08, 19,045.44 and 8,422.56

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Solution

The fourth proportional to 13,798.08, 19,045.44 and 8,422.56 is: 11,625.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798.08 : 19,045.44 = 8,422.56 : x
  2. Step 2: Convert to fraction form
    13,798.08/19,045.44 = 8,422.56/x
  3. Step 3: Cross multiply
    13,798.08x = 19,045.44 × 8,422.56
  4. Step 4: Simplify right side
    13,798.08x = 160,411,361.13
  5. Step 5: Solve for x
    x = 160,411,361.13/13,798.08
  6. Step 6: Final answer
    x = 11,625.63

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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.