Home / 10,378.32-14,326.23-6,403.44

Finding the Fourth Proportional to 10,378.32, 14,326.23 and 6,403.44

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Solution

The fourth proportional to 10,378.32, 14,326.23 and 6,403.44 is: 8,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.32 : 14,326.23 = 6,403.44 : x
  2. Step 2: Convert to fraction form
    10,378.32/14,326.23 = 6,403.44/x
  3. Step 3: Cross multiply
    10,378.32x = 14,326.23 × 6,403.44
  4. Step 4: Simplify right side
    10,378.32x = 91,737,154.23
  5. Step 5: Solve for x
    x = 91,737,154.23/10,378.32
  6. Step 6: Final answer
    x = 8,839.31

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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.