Home / 13,357.04-18,431.96-7,388.32

Finding the Fourth Proportional to 13,357.04, 18,431.96 and 7,388.32

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Solution

The fourth proportional to 13,357.04, 18,431.96 and 7,388.32 is: 10,195.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,357.04 : 18,431.96 = 7,388.32 : x
  2. Step 2: Convert to fraction form
    13,357.04/18,431.96 = 7,388.32/x
  3. Step 3: Cross multiply
    13,357.04x = 18,431.96 × 7,388.32
  4. Step 4: Simplify right side
    13,357.04x = 136,181,218.71
  5. Step 5: Solve for x
    x = 136,181,218.71/13,357.04
  6. Step 6: Final answer
    x = 10,195.46

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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.