Home / 14,080.32-19,431.36-8,490.24

Finding the Fourth Proportional to 14,080.32, 19,431.36 and 8,490.24

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Solution

The fourth proportional to 14,080.32, 19,431.36 and 8,490.24 is: 11,716.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,080.32 : 19,431.36 = 8,490.24 : x
  2. Step 2: Convert to fraction form
    14,080.32/19,431.36 = 8,490.24/x
  3. Step 3: Cross multiply
    14,080.32x = 19,431.36 × 8,490.24
  4. Step 4: Simplify right side
    14,080.32x = 164,976,909.93
  5. Step 5: Solve for x
    x = 164,976,909.93/14,080.32
  6. Step 6: Final answer
    x = 11,716.84

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Double scale
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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.