Home / 12,480.60-18,723.54-4,689.48

Finding the Fourth Proportional to 12,480.60, 18,723.54 and 4,689.48

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Solution

The fourth proportional to 12,480.60, 18,723.54 and 4,689.48 is: 7,035.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.60 : 18,723.54 = 4,689.48 : x
  2. Step 2: Convert to fraction form
    12,480.60/18,723.54 = 4,689.48/x
  3. Step 3: Cross multiply
    12,480.60x = 18,723.54 × 4,689.48
  4. Step 4: Simplify right side
    12,480.60x = 87,803,666.36
  5. Step 5: Solve for x
    x = 87,803,666.36/12,480.60
  6. Step 6: Final answer
    x = 7,035.21

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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.