Home / 13,388.40-20,055.24-6,347.07

Finding the Fourth Proportional to 13,388.40, 20,055.24 and 6,347.07

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Solution

The fourth proportional to 13,388.40, 20,055.24 and 6,347.07 is: 9,507.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.40 : 20,055.24 = 6,347.07 : x
  2. Step 2: Convert to fraction form
    13,388.40/20,055.24 = 6,347.07/x
  3. Step 3: Cross multiply
    13,388.40x = 20,055.24 × 6,347.07
  4. Step 4: Simplify right side
    13,388.40x = 127,292,012.15
  5. Step 5: Solve for x
    x = 127,292,012.15/13,388.40
  6. Step 6: Final answer
    x = 9,507.63

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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.