Home / 14,078.10-19,427.67-8,415.30

Finding the Fourth Proportional to 14,078.10, 19,427.67 and 8,415.30

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Solution

The fourth proportional to 14,078.10, 19,427.67 and 8,415.30 is: 11,613.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.10 : 19,427.67 = 8,415.30 : x
  2. Step 2: Convert to fraction form
    14,078.10/19,427.67 = 8,415.30/x
  3. Step 3: Cross multiply
    14,078.10x = 19,427.67 × 8,415.30
  4. Step 4: Simplify right side
    14,078.10x = 163,489,671.35
  5. Step 5: Solve for x
    x = 163,489,671.35/14,078.10
  6. Step 6: Final answer
    x = 11,613.05

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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.