Home / 10,256.32-15,382.80-3,681.28

Finding the Fourth Proportional to 10,256.32, 15,382.80 and 3,681.28

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Solution

The fourth proportional to 10,256.32, 15,382.80 and 3,681.28 is: 5,521.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,256.32 : 15,382.80 = 3,681.28 : x
  2. Step 2: Convert to fraction form
    10,256.32/15,382.80 = 3,681.28/x
  3. Step 3: Cross multiply
    10,256.32x = 15,382.80 × 3,681.28
  4. Step 4: Simplify right side
    10,256.32x = 56,628,393.98
  5. Step 5: Solve for x
    x = 56,628,393.98/10,256.32
  6. Step 6: Final answer
    x = 5,521.32

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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.