Home / 12,047.04-16,649.28-9,391.68

Finding the Fourth Proportional to 12,047.04, 16,649.28 and 9,391.68

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Solution

The fourth proportional to 12,047.04, 16,649.28 and 9,391.68 is: 12,979.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,047.04 : 16,649.28 = 9,391.68 : x
  2. Step 2: Convert to fraction form
    12,047.04/16,649.28 = 9,391.68/x
  3. Step 3: Cross multiply
    12,047.04x = 16,649.28 × 9,391.68
  4. Step 4: Simplify right side
    12,047.04x = 156,364,709.99
  5. Step 5: Solve for x
    x = 156,364,709.99/12,047.04
  6. Step 6: Final answer
    x = 12,979.51

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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.