Home / 11,538.12-17,308.80-4,967.40

Finding the Fourth Proportional to 11,538.12, 17,308.80 and 4,967.40

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Solution

The fourth proportional to 11,538.12, 17,308.80 and 4,967.40 is: 7,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,538.12 : 17,308.80 = 4,967.40 : x
  2. Step 2: Convert to fraction form
    11,538.12/17,308.80 = 4,967.40/x
  3. Step 3: Cross multiply
    11,538.12x = 17,308.80 × 4,967.40
  4. Step 4: Simplify right side
    11,538.12x = 85,979,733.12
  5. Step 5: Solve for x
    x = 85,979,733.12/11,538.12
  6. Step 6: Final answer
    x = 7,451.80

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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.