Home / 14,083.28-19,431.24-8,490.32

Finding the Fourth Proportional to 14,083.28, 19,431.24 and 8,490.32

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Solution

The fourth proportional to 14,083.28, 19,431.24 and 8,490.32 is: 11,714.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,083.28 : 19,431.24 = 8,490.32 : x
  2. Step 2: Convert to fraction form
    14,083.28/19,431.24 = 8,490.32/x
  3. Step 3: Cross multiply
    14,083.28x = 19,431.24 × 8,490.32
  4. Step 4: Simplify right side
    14,083.28x = 164,977,445.60
  5. Step 5: Solve for x
    x = 164,977,445.60/14,083.28
  6. Step 6: Final answer
    x = 11,714.42

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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.