Home / 14,122.80-19,487.26-8,153.32

Finding the Fourth Proportional to 14,122.80, 19,487.26 and 8,153.32

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Solution

The fourth proportional to 14,122.80, 19,487.26 and 8,153.32 is: 11,250.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.80 : 19,487.26 = 8,153.32 : x
  2. Step 2: Convert to fraction form
    14,122.80/19,487.26 = 8,153.32/x
  3. Step 3: Cross multiply
    14,122.80x = 19,487.26 × 8,153.32
  4. Step 4: Simplify right side
    14,122.80x = 158,885,866.70
  5. Step 5: Solve for x
    x = 158,885,866.70/14,122.80
  6. Step 6: Final answer
    x = 11,250.31

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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.