Home / 11,518.47-17,258.22-8,214.93

Finding the Fourth Proportional to 11,518.47, 17,258.22 and 8,214.93

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Solution

The fourth proportional to 11,518.47, 17,258.22 and 8,214.93 is: 12,308.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.47 : 17,258.22 = 8,214.93 : x
  2. Step 2: Convert to fraction form
    11,518.47/17,258.22 = 8,214.93/x
  3. Step 3: Cross multiply
    11,518.47x = 17,258.22 × 8,214.93
  4. Step 4: Simplify right side
    11,518.47x = 141,775,069.22
  5. Step 5: Solve for x
    x = 141,775,069.22/11,518.47
  6. Step 6: Final answer
    x = 12,308.50

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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.