Home / 12,260.80-18,384.48-4,857.76

Finding the Fourth Proportional to 12,260.80, 18,384.48 and 4,857.76

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Solution

The fourth proportional to 12,260.80, 18,384.48 and 4,857.76 is: 7,283.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.80 : 18,384.48 = 4,857.76 : x
  2. Step 2: Convert to fraction form
    12,260.80/18,384.48 = 4,857.76/x
  3. Step 3: Cross multiply
    12,260.80x = 18,384.48 × 4,857.76
  4. Step 4: Simplify right side
    12,260.80x = 89,307,391.56
  5. Step 5: Solve for x
    x = 89,307,391.56/12,260.80
  6. Step 6: Final answer
    x = 7,283.98

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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.