Home / 10,256.40-14,157.32-6,378.84

Finding the Fourth Proportional to 10,256.40, 14,157.32 and 6,378.84

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Solution

The fourth proportional to 10,256.40, 14,157.32 and 6,378.84 is: 8,804.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,256.40 : 14,157.32 = 6,378.84 : x
  2. Step 2: Convert to fraction form
    10,256.40/14,157.32 = 6,378.84/x
  3. Step 3: Cross multiply
    10,256.40x = 14,157.32 × 6,378.84
  4. Step 4: Simplify right side
    10,256.40x = 90,307,247.21
  5. Step 5: Solve for x
    x = 90,307,247.21/10,256.40
  6. Step 6: Final answer
    x = 8,804.97

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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.