Home / 14,190.40-19,587.48-8,228.08

Finding the Fourth Proportional to 14,190.40, 19,587.48 and 8,228.08

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Solution

The fourth proportional to 14,190.40, 19,587.48 and 8,228.08 is: 11,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.40 : 19,587.48 = 8,228.08 : x
  2. Step 2: Convert to fraction form
    14,190.40/19,587.48 = 8,228.08/x
  3. Step 3: Cross multiply
    14,190.40x = 19,587.48 × 8,228.08
  4. Step 4: Simplify right side
    14,190.40x = 161,167,352.44
  5. Step 5: Solve for x
    x = 161,167,352.44/14,190.40
  6. Step 6: Final answer
    x = 11,357.49

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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.