Home / 12,542.48-18,809.88-8,671.76

Finding the Fourth Proportional to 12,542.48, 18,809.88 and 8,671.76

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Solution

The fourth proportional to 12,542.48, 18,809.88 and 8,671.76 is: 13,004.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,542.48 : 18,809.88 = 8,671.76 : x
  2. Step 2: Convert to fraction form
    12,542.48/18,809.88 = 8,671.76/x
  3. Step 3: Cross multiply
    12,542.48x = 18,809.88 × 8,671.76
  4. Step 4: Simplify right side
    12,542.48x = 163,114,764.99
  5. Step 5: Solve for x
    x = 163,114,764.99/12,542.48
  6. Step 6: Final answer
    x = 13,004.99

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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.