Home / 12,310.55-18,465.10-7,376.84

Finding the Fourth Proportional to 12,310.55, 18,465.10 and 7,376.84

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Solution

The fourth proportional to 12,310.55, 18,465.10 and 7,376.84 is: 11,064.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310.55 : 18,465.10 = 7,376.84 : x
  2. Step 2: Convert to fraction form
    12,310.55/18,465.10 = 7,376.84/x
  3. Step 3: Cross multiply
    12,310.55x = 18,465.10 × 7,376.84
  4. Step 4: Simplify right side
    12,310.55x = 136,214,046.76
  5. Step 5: Solve for x
    x = 136,214,046.76/12,310.55
  6. Step 6: Final answer
    x = 11,064.82

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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.