Home / 12,543.12-18,799.34-4,639.14

Finding the Fourth Proportional to 12,543.12, 18,799.34 and 4,639.14

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Solution

The fourth proportional to 12,543.12, 18,799.34 and 4,639.14 is: 6,953.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.12 : 18,799.34 = 4,639.14 : x
  2. Step 2: Convert to fraction form
    12,543.12/18,799.34 = 4,639.14/x
  3. Step 3: Cross multiply
    12,543.12x = 18,799.34 × 4,639.14
  4. Step 4: Simplify right side
    12,543.12x = 87,212,746.97
  5. Step 5: Solve for x
    x = 87,212,746.97/12,543.12
  6. Step 6: Final answer
    x = 6,953.03

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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.