Home / 12,011.04-18,001.44-5,765.94

Finding the Fourth Proportional to 12,011.04, 18,001.44 and 5,765.94

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Solution

The fourth proportional to 12,011.04, 18,001.44 and 5,765.94 is: 8,641.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.04 : 18,001.44 = 5,765.94 : x
  2. Step 2: Convert to fraction form
    12,011.04/18,001.44 = 5,765.94/x
  3. Step 3: Cross multiply
    12,011.04x = 18,001.44 × 5,765.94
  4. Step 4: Simplify right side
    12,011.04x = 103,795,222.95
  5. Step 5: Solve for x
    x = 103,795,222.95/12,011.04
  6. Step 6: Final answer
    x = 8,641.65

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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.