Home / 12,487.24-18,731.46-4,695.45

Finding the Fourth Proportional to 12,487.24, 18,731.46 and 4,695.45

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Solution

The fourth proportional to 12,487.24, 18,731.46 and 4,695.45 is: 7,043.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.24 : 18,731.46 = 4,695.45 : x
  2. Step 2: Convert to fraction form
    12,487.24/18,731.46 = 4,695.45/x
  3. Step 3: Cross multiply
    12,487.24x = 18,731.46 × 4,695.45
  4. Step 4: Simplify right side
    12,487.24x = 87,952,633.86
  5. Step 5: Solve for x
    x = 87,952,633.86/12,487.24
  6. Step 6: Final answer
    x = 7,043.40

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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.