Home / 12,549.08-18,827.72-9,036.21

Finding the Fourth Proportional to 12,549.08, 18,827.72 and 9,036.21

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Solution

The fourth proportional to 12,549.08, 18,827.72 and 9,036.21 is: 13,557.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.08 : 18,827.72 = 9,036.21 : x
  2. Step 2: Convert to fraction form
    12,549.08/18,827.72 = 9,036.21/x
  3. Step 3: Cross multiply
    12,549.08x = 18,827.72 × 9,036.21
  4. Step 4: Simplify right side
    12,549.08x = 170,131,231.74
  5. Step 5: Solve for x
    x = 170,131,231.74/12,549.08
  6. Step 6: Final answer
    x = 13,557.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.