Home / 9,090.42-13,628.28-4,089.13

Finding the Fourth Proportional to 9,090.42, 13,628.28 and 4,089.13

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Solution

The fourth proportional to 9,090.42, 13,628.28 and 4,089.13 is: 6,130.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.42 : 13,628.28 = 4,089.13 : x
  2. Step 2: Convert to fraction form
    9,090.42/13,628.28 = 4,089.13/x
  3. Step 3: Cross multiply
    9,090.42x = 13,628.28 × 4,089.13
  4. Step 4: Simplify right side
    9,090.42x = 55,727,808.60
  5. Step 5: Solve for x
    x = 55,727,808.60/9,090.42
  6. Step 6: Final answer
    x = 6,130.39

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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.