Home / 12,529.08-17,270.28-9,872.28

Finding the Fourth Proportional to 12,529.08, 17,270.28 and 9,872.28

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Solution

The fourth proportional to 12,529.08, 17,270.28 and 9,872.28 is: 13,608.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.08 : 17,270.28 = 9,872.28 : x
  2. Step 2: Convert to fraction form
    12,529.08/17,270.28 = 9,872.28/x
  3. Step 3: Cross multiply
    12,529.08x = 17,270.28 × 9,872.28
  4. Step 4: Simplify right side
    12,529.08x = 170,497,039.84
  5. Step 5: Solve for x
    x = 170,497,039.84/12,529.08
  6. Step 6: Final answer
    x = 13,608.11

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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.