Home / 12,846.04-17,728.81-7,540.74

Finding the Fourth Proportional to 12,846.04, 17,728.81 and 7,540.74

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Solution

The fourth proportional to 12,846.04, 17,728.81 and 7,540.74 is: 10,406.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,846.04 : 17,728.81 = 7,540.74 : x
  2. Step 2: Convert to fraction form
    12,846.04/17,728.81 = 7,540.74/x
  3. Step 3: Cross multiply
    12,846.04x = 17,728.81 × 7,540.74
  4. Step 4: Simplify right side
    12,846.04x = 133,688,327.87
  5. Step 5: Solve for x
    x = 133,688,327.87/12,846.04
  6. Step 6: Final answer
    x = 10,406.97

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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.