Home / 10,509.55-15,766.62-3,114.58

Finding the Fourth Proportional to 10,509.55, 15,766.62 and 3,114.58

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Solution

The fourth proportional to 10,509.55, 15,766.62 and 3,114.58 is: 4,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.55 : 15,766.62 = 3,114.58 : x
  2. Step 2: Convert to fraction form
    10,509.55/15,766.62 = 3,114.58/x
  3. Step 3: Cross multiply
    10,509.55x = 15,766.62 × 3,114.58
  4. Step 4: Simplify right side
    10,509.55x = 49,106,399.32
  5. Step 5: Solve for x
    x = 49,106,399.32/10,509.55
  6. Step 6: Final answer
    x = 4,672.55

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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.