Home / 11,455.02-17,260.56-9,420.60

Finding the Fourth Proportional to 11,455.02, 17,260.56 and 9,420.60

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Solution

The fourth proportional to 11,455.02, 17,260.56 and 9,420.60 is: 14,195.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.02 : 17,260.56 = 9,420.60 : x
  2. Step 2: Convert to fraction form
    11,455.02/17,260.56 = 9,420.60/x
  3. Step 3: Cross multiply
    11,455.02x = 17,260.56 × 9,420.60
  4. Step 4: Simplify right side
    11,455.02x = 162,604,831.54
  5. Step 5: Solve for x
    x = 162,604,831.54/11,455.02
  6. Step 6: Final answer
    x = 14,195.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.