Home / 14,605.96-20,156.19-8,318.35

Finding the Fourth Proportional to 14,605.96, 20,156.19 and 8,318.35

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Solution

The fourth proportional to 14,605.96, 20,156.19 and 8,318.35 is: 11,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,605.96 : 20,156.19 = 8,318.35 : x
  2. Step 2: Convert to fraction form
    14,605.96/20,156.19 = 8,318.35/x
  3. Step 3: Cross multiply
    14,605.96x = 20,156.19 × 8,318.35
  4. Step 4: Simplify right side
    14,605.96x = 167,666,243.09
  5. Step 5: Solve for x
    x = 167,666,243.09/14,605.96
  6. Step 6: Final answer
    x = 11,479.30

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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.