Home / 10,256.31-15,384.36-2,860.75

Finding the Fourth Proportional to 10,256.31, 15,384.36 and 2,860.75

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Solution

The fourth proportional to 10,256.31, 15,384.36 and 2,860.75 is: 4,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,256.31 : 15,384.36 = 2,860.75 : x
  2. Step 2: Convert to fraction form
    10,256.31/15,384.36 = 2,860.75/x
  3. Step 3: Cross multiply
    10,256.31x = 15,384.36 × 2,860.75
  4. Step 4: Simplify right side
    10,256.31x = 44,010,807.87
  5. Step 5: Solve for x
    x = 44,010,807.87/10,256.31
  6. Step 6: Final answer
    x = 4,291.10

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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.