Home / 12,035.61-18,042.48-5,458.21

Finding the Fourth Proportional to 12,035.61, 18,042.48 and 5,458.21

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Solution

The fourth proportional to 12,035.61, 18,042.48 and 5,458.21 is: 8,182.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,035.61 : 18,042.48 = 5,458.21 : x
  2. Step 2: Convert to fraction form
    12,035.61/18,042.48 = 5,458.21/x
  3. Step 3: Cross multiply
    12,035.61x = 18,042.48 × 5,458.21
  4. Step 4: Simplify right side
    12,035.61x = 98,479,599.65
  5. Step 5: Solve for x
    x = 98,479,599.65/12,035.61
  6. Step 6: Final answer
    x = 8,182.35

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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.