Home / 12,281.55-16,950.75-7,245.48

Finding the Fourth Proportional to 12,281.55, 16,950.75 and 7,245.48

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Solution

The fourth proportional to 12,281.55, 16,950.75 and 7,245.48 is: 10,000.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.55 : 16,950.75 = 7,245.48 : x
  2. Step 2: Convert to fraction form
    12,281.55/16,950.75 = 7,245.48/x
  3. Step 3: Cross multiply
    12,281.55x = 16,950.75 × 7,245.48
  4. Step 4: Simplify right side
    12,281.55x = 122,816,320.11
  5. Step 5: Solve for x
    x = 122,816,320.11/12,281.55
  6. Step 6: Final answer
    x = 10,000.07

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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.