Home / 11,543.21-15,928.52-6,506.97

Finding the Fourth Proportional to 11,543.21, 15,928.52 and 6,506.97

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Solution

The fourth proportional to 11,543.21, 15,928.52 and 6,506.97 is: 8,978.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,543.21 : 15,928.52 = 6,506.97 : x
  2. Step 2: Convert to fraction form
    11,543.21/15,928.52 = 6,506.97/x
  3. Step 3: Cross multiply
    11,543.21x = 15,928.52 × 6,506.97
  4. Step 4: Simplify right side
    11,543.21x = 103,646,309.52
  5. Step 5: Solve for x
    x = 103,646,309.52/11,543.21
  6. Step 6: Final answer
    x = 8,978.99

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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.