Home / 11,406.27-15,740.63-6,370.55

Finding the Fourth Proportional to 11,406.27, 15,740.63 and 6,370.55

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Solution

The fourth proportional to 11,406.27, 15,740.63 and 6,370.55 is: 8,791.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.27 : 15,740.63 = 6,370.55 : x
  2. Step 2: Convert to fraction form
    11,406.27/15,740.63 = 6,370.55/x
  3. Step 3: Cross multiply
    11,406.27x = 15,740.63 × 6,370.55
  4. Step 4: Simplify right side
    11,406.27x = 100,276,442.81
  5. Step 5: Solve for x
    x = 100,276,442.81/11,406.27
  6. Step 6: Final answer
    x = 8,791.35

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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.