Home / 13,308.18-19,960.65-4,542.90

Finding the Fourth Proportional to 13,308.18, 19,960.65 and 4,542.90

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Solution

The fourth proportional to 13,308.18, 19,960.65 and 4,542.90 is: 6,813.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.18 : 19,960.65 = 4,542.90 : x
  2. Step 2: Convert to fraction form
    13,308.18/19,960.65 = 4,542.90/x
  3. Step 3: Cross multiply
    13,308.18x = 19,960.65 × 4,542.90
  4. Step 4: Simplify right side
    13,308.18x = 90,679,236.89
  5. Step 5: Solve for x
    x = 90,679,236.89/13,308.18
  6. Step 6: Final answer
    x = 6,813.80

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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.