Home / 9,090.90-13,639.14-7,523.76

Finding the Fourth Proportional to 9,090.90, 13,639.14 and 7,523.76

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Solution

The fourth proportional to 9,090.90, 13,639.14 and 7,523.76 is: 11,287.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.90 : 13,639.14 = 7,523.76 : x
  2. Step 2: Convert to fraction form
    9,090.90/13,639.14 = 7,523.76/x
  3. Step 3: Cross multiply
    9,090.90x = 13,639.14 × 7,523.76
  4. Step 4: Simplify right side
    9,090.90x = 102,617,615.97
  5. Step 5: Solve for x
    x = 102,617,615.97/9,090.90
  6. Step 6: Final answer
    x = 11,287.95

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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.