Home / 12,897.60-19,358.55-11,050.80

Finding the Fourth Proportional to 12,897.60, 19,358.55 and 11,050.80

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Solution

The fourth proportional to 12,897.60, 19,358.55 and 11,050.80 is: 16,586.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.60 : 19,358.55 = 11,050.80 : x
  2. Step 2: Convert to fraction form
    12,897.60/19,358.55 = 11,050.80/x
  3. Step 3: Cross multiply
    12,897.60x = 19,358.55 × 11,050.80
  4. Step 4: Simplify right side
    12,897.60x = 213,927,464.34
  5. Step 5: Solve for x
    x = 213,927,464.34/12,897.60
  6. Step 6: Final answer
    x = 16,586.61

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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.