Home / 12,551.36-18,830.12-8,860.80

Finding the Fourth Proportional to 12,551.36, 18,830.12 and 8,860.80

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Solution

The fourth proportional to 12,551.36, 18,830.12 and 8,860.80 is: 13,293.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.36 : 18,830.12 = 8,860.80 : x
  2. Step 2: Convert to fraction form
    12,551.36/18,830.12 = 8,860.80/x
  3. Step 3: Cross multiply
    12,551.36x = 18,830.12 × 8,860.80
  4. Step 4: Simplify right side
    12,551.36x = 166,849,927.30
  5. Step 5: Solve for x
    x = 166,849,927.30/12,551.36
  6. Step 6: Final answer
    x = 13,293.37

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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.