Home / 14,987.45-20,683.37-8,616.11

Finding the Fourth Proportional to 14,987.45, 20,683.37 and 8,616.11

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Solution

The fourth proportional to 14,987.45, 20,683.37 and 8,616.11 is: 11,890.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,987.45 : 20,683.37 = 8,616.11 : x
  2. Step 2: Convert to fraction form
    14,987.45/20,683.37 = 8,616.11/x
  3. Step 3: Cross multiply
    14,987.45x = 20,683.37 × 8,616.11
  4. Step 4: Simplify right side
    14,987.45x = 178,210,044.59
  5. Step 5: Solve for x
    x = 178,210,044.59/14,987.45
  6. Step 6: Final answer
    x = 11,890.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.