Home / 10,383.70-14,329.05-6,405.19

Finding the Fourth Proportional to 10,383.70, 14,329.05 and 6,405.19

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Solution

The fourth proportional to 10,383.70, 14,329.05 and 6,405.19 is: 8,838.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,383.70 : 14,329.05 = 6,405.19 : x
  2. Step 2: Convert to fraction form
    10,383.70/14,329.05 = 6,405.19/x
  3. Step 3: Cross multiply
    10,383.70x = 14,329.05 × 6,405.19
  4. Step 4: Simplify right side
    10,383.70x = 91,780,287.77
  5. Step 5: Solve for x
    x = 91,780,287.77/10,383.70
  6. Step 6: Final answer
    x = 8,838.88

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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.