Home / 14,647.86-20,214.14-8,187.50

Finding the Fourth Proportional to 14,647.86, 20,214.14 and 8,187.50

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Solution

The fourth proportional to 14,647.86, 20,214.14 and 8,187.50 is: 11,298.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,647.86 : 20,214.14 = 8,187.50 : x
  2. Step 2: Convert to fraction form
    14,647.86/20,214.14 = 8,187.50/x
  3. Step 3: Cross multiply
    14,647.86x = 20,214.14 × 8,187.50
  4. Step 4: Simplify right side
    14,647.86x = 165,503,129.24
  5. Step 5: Solve for x
    x = 165,503,129.24/14,647.86
  6. Step 6: Final answer
    x = 11,298.79

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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.