Home / 14,403.48-19,876.74-8,115.84

Finding the Fourth Proportional to 14,403.48, 19,876.74 and 8,115.84

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Solution

The fourth proportional to 14,403.48, 19,876.74 and 8,115.84 is: 11,199.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,403.48 : 19,876.74 = 8,115.84 : x
  2. Step 2: Convert to fraction form
    14,403.48/19,876.74 = 8,115.84/x
  3. Step 3: Cross multiply
    14,403.48x = 19,876.74 × 8,115.84
  4. Step 4: Simplify right side
    14,403.48x = 161,316,441.56
  5. Step 5: Solve for x
    x = 161,316,441.56/14,403.48
  6. Step 6: Final answer
    x = 11,199.82

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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.