Home / 9,090.90-13,636.98-3,542.40

Finding the Fourth Proportional to 9,090.90, 13,636.98 and 3,542.40

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Solution

The fourth proportional to 9,090.90, 13,636.98 and 3,542.40 is: 5,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.90 : 13,636.98 = 3,542.40 : x
  2. Step 2: Convert to fraction form
    9,090.90/13,636.98 = 3,542.40/x
  3. Step 3: Cross multiply
    9,090.90x = 13,636.98 × 3,542.40
  4. Step 4: Simplify right side
    9,090.90x = 48,307,637.95
  5. Step 5: Solve for x
    x = 48,307,637.95/9,090.90
  6. Step 6: Final answer
    x = 5,313.85

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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.