Home / 14,555.76-20,085.75-8,587.68

Finding the Fourth Proportional to 14,555.76, 20,085.75 and 8,587.68

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Solution

The fourth proportional to 14,555.76, 20,085.75 and 8,587.68 is: 11,850.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,555.76 : 20,085.75 = 8,587.68 : x
  2. Step 2: Convert to fraction form
    14,555.76/20,085.75 = 8,587.68/x
  3. Step 3: Cross multiply
    14,555.76x = 20,085.75 × 8,587.68
  4. Step 4: Simplify right side
    14,555.76x = 172,489,993.56
  5. Step 5: Solve for x
    x = 172,489,993.56/14,555.76
  6. Step 6: Final answer
    x = 11,850.29

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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.