Home / 10,455.04-15,682.44-2,557.72

Finding the Fourth Proportional to 10,455.04, 15,682.44 and 2,557.72

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Solution

The fourth proportional to 10,455.04, 15,682.44 and 2,557.72 is: 3,836.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.04 : 15,682.44 = 2,557.72 : x
  2. Step 2: Convert to fraction form
    10,455.04/15,682.44 = 2,557.72/x
  3. Step 3: Cross multiply
    10,455.04x = 15,682.44 × 2,557.72
  4. Step 4: Simplify right side
    10,455.04x = 40,111,290.44
  5. Step 5: Solve for x
    x = 40,111,290.44/10,455.04
  6. Step 6: Final answer
    x = 3,836.55

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1.5x scale

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.