Home / 12,757.16-17,561.79-10,515.48

Finding the Fourth Proportional to 12,757.16, 17,561.79 and 10,515.48

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Solution

The fourth proportional to 12,757.16, 17,561.79 and 10,515.48 is: 14,475.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,757.16 : 17,561.79 = 10,515.48 : x
  2. Step 2: Convert to fraction form
    12,757.16/17,561.79 = 10,515.48/x
  3. Step 3: Cross multiply
    12,757.16x = 17,561.79 × 10,515.48
  4. Step 4: Simplify right side
    12,757.16x = 184,670,651.51
  5. Step 5: Solve for x
    x = 184,670,651.51/12,757.16
  6. Step 6: Final answer
    x = 14,475.85

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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.