Home / 14,039.60-21,062.84-4,178.84

Finding the Fourth Proportional to 14,039.60, 21,062.84 and 4,178.84

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Solution

The fourth proportional to 14,039.60, 21,062.84 and 4,178.84 is: 6,269.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,039.60 : 21,062.84 = 4,178.84 : x
  2. Step 2: Convert to fraction form
    14,039.60/21,062.84 = 4,178.84/x
  3. Step 3: Cross multiply
    14,039.60x = 21,062.84 × 4,178.84
  4. Step 4: Simplify right side
    14,039.60x = 88,018,112.10
  5. Step 5: Solve for x
    x = 88,018,112.10/14,039.60
  6. Step 6: Final answer
    x = 6,269.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.