Home / 11,931.48-16,464.66-7,455

Finding the Fourth Proportional to 11,931.48, 16,464.66 and 7,455

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Solution

The fourth proportional to 11,931.48, 16,464.66 and 7,455 is: 10,287.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.48 : 16,464.66 = 7,455 : x
  2. Step 2: Convert to fraction form
    11,931.48/16,464.66 = 7,455/x
  3. Step 3: Cross multiply
    11,931.48x = 16,464.66 × 7,455
  4. Step 4: Simplify right side
    11,931.48x = 122,744,040.30
  5. Step 5: Solve for x
    x = 122,744,040.30/11,931.48
  6. Step 6: Final answer
    x = 10,287.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.