Home / 12,305.64-16,983-7,271.52

Finding the Fourth Proportional to 12,305.64, 16,983 and 7,271.52

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Solution

The fourth proportional to 12,305.64, 16,983 and 7,271.52 is: 10,035.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.64 : 16,983 = 7,271.52 : x
  2. Step 2: Convert to fraction form
    12,305.64/16,983 = 7,271.52/x
  3. Step 3: Cross multiply
    12,305.64x = 16,983 × 7,271.52
  4. Step 4: Simplify right side
    12,305.64x = 123,492,224.16
  5. Step 5: Solve for x
    x = 123,492,224.16/12,305.64
  6. Step 6: Final answer
    x = 10,035.42

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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.