Home / 14,918.63-20,587.73-8,631.41

Finding the Fourth Proportional to 14,918.63, 20,587.73 and 8,631.41

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Solution

The fourth proportional to 14,918.63, 20,587.73 and 8,631.41 is: 11,911.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,918.63 : 20,587.73 = 8,631.41 : x
  2. Step 2: Convert to fraction form
    14,918.63/20,587.73 = 8,631.41/x
  3. Step 3: Cross multiply
    14,918.63x = 20,587.73 × 8,631.41
  4. Step 4: Simplify right side
    14,918.63x = 177,700,992.50
  5. Step 5: Solve for x
    x = 177,700,992.50/14,918.63
  6. Step 6: Final answer
    x = 11,911.35

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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.