Home / 14,270.16-19,693.56-8,221.32

Finding the Fourth Proportional to 14,270.16, 19,693.56 and 8,221.32

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Solution

The fourth proportional to 14,270.16, 19,693.56 and 8,221.32 is: 11,345.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,270.16 : 19,693.56 = 8,221.32 : x
  2. Step 2: Convert to fraction form
    14,270.16/19,693.56 = 8,221.32/x
  3. Step 3: Cross multiply
    14,270.16x = 19,693.56 × 8,221.32
  4. Step 4: Simplify right side
    14,270.16x = 161,907,058.70
  5. Step 5: Solve for x
    x = 161,907,058.70/14,270.16
  6. Step 6: Final answer
    x = 11,345.85

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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.