Home / 12,126.12-16,738.47-7,652.79

Finding the Fourth Proportional to 12,126.12, 16,738.47 and 7,652.79

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Solution

The fourth proportional to 12,126.12, 16,738.47 and 7,652.79 is: 10,563.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.12 : 16,738.47 = 7,652.79 : x
  2. Step 2: Convert to fraction form
    12,126.12/16,738.47 = 7,652.79/x
  3. Step 3: Cross multiply
    12,126.12x = 16,738.47 × 7,652.79
  4. Step 4: Simplify right side
    12,126.12x = 128,095,995.83
  5. Step 5: Solve for x
    x = 128,095,995.83/12,126.12
  6. Step 6: Final answer
    x = 10,563.64

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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.