Home / 12,337.21-18,505.64-2,977.15

Finding the Fourth Proportional to 12,337.21, 18,505.64 and 2,977.15

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Solution

The fourth proportional to 12,337.21, 18,505.64 and 2,977.15 is: 4,465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,337.21 : 18,505.64 = 2,977.15 : x
  2. Step 2: Convert to fraction form
    12,337.21/18,505.64 = 2,977.15/x
  3. Step 3: Cross multiply
    12,337.21x = 18,505.64 × 2,977.15
  4. Step 4: Simplify right side
    12,337.21x = 55,094,066.13
  5. Step 5: Solve for x
    x = 55,094,066.13/12,337.21
  6. Step 6: Final answer
    x = 4,465.68

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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.