Home / 11,490.36-17,240.04-9,289.74

Finding the Fourth Proportional to 11,490.36, 17,240.04 and 9,289.74

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Solution

The fourth proportional to 11,490.36, 17,240.04 and 9,289.74 is: 13,938.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,490.36 : 17,240.04 = 9,289.74 : x
  2. Step 2: Convert to fraction form
    11,490.36/17,240.04 = 9,289.74/x
  3. Step 3: Cross multiply
    11,490.36x = 17,240.04 × 9,289.74
  4. Step 4: Simplify right side
    11,490.36x = 160,155,489.19
  5. Step 5: Solve for x
    x = 160,155,489.19/11,490.36
  6. Step 6: Final answer
    x = 13,938.25

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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.