Home / 12,265.48-18,403.87-9,487.98

Finding the Fourth Proportional to 12,265.48, 18,403.87 and 9,487.98

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Solution

The fourth proportional to 12,265.48, 18,403.87 and 9,487.98 is: 14,236.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,265.48 : 18,403.87 = 9,487.98 : x
  2. Step 2: Convert to fraction form
    12,265.48/18,403.87 = 9,487.98/x
  3. Step 3: Cross multiply
    12,265.48x = 18,403.87 × 9,487.98
  4. Step 4: Simplify right side
    12,265.48x = 174,615,550.48
  5. Step 5: Solve for x
    x = 174,615,550.48/12,265.48
  6. Step 6: Final answer
    x = 14,236.34

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1.5x scale

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.