Home / 13,443.37-20,147.54-6,864.01

Finding the Fourth Proportional to 13,443.37, 20,147.54 and 6,864.01

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Solution

The fourth proportional to 13,443.37, 20,147.54 and 6,864.01 is: 10,287.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.37 : 20,147.54 = 6,864.01 : x
  2. Step 2: Convert to fraction form
    13,443.37/20,147.54 = 6,864.01/x
  3. Step 3: Cross multiply
    13,443.37x = 20,147.54 × 6,864.01
  4. Step 4: Simplify right side
    13,443.37x = 138,292,881.72
  5. Step 5: Solve for x
    x = 138,292,881.72/13,443.37
  6. Step 6: Final answer
    x = 10,287.07

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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.