Home / 14,121.52-19,487.70-8,816.32

Finding the Fourth Proportional to 14,121.52, 19,487.70 and 8,816.32

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Solution

The fourth proportional to 14,121.52, 19,487.70 and 8,816.32 is: 12,166.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.52 : 19,487.70 = 8,816.32 : x
  2. Step 2: Convert to fraction form
    14,121.52/19,487.70 = 8,816.32/x
  3. Step 3: Cross multiply
    14,121.52x = 19,487.70 × 8,816.32
  4. Step 4: Simplify right side
    14,121.52x = 171,809,799.26
  5. Step 5: Solve for x
    x = 171,809,799.26/14,121.52
  6. Step 6: Final answer
    x = 12,166.52

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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.