Home / 13,349.62-18,422.35-7,381.26

Finding the Fourth Proportional to 13,349.62, 18,422.35 and 7,381.26

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Solution

The fourth proportional to 13,349.62, 18,422.35 and 7,381.26 is: 10,186.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.62 : 18,422.35 = 7,381.26 : x
  2. Step 2: Convert to fraction form
    13,349.62/18,422.35 = 7,381.26/x
  3. Step 3: Cross multiply
    13,349.62x = 18,422.35 × 7,381.26
  4. Step 4: Simplify right side
    13,349.62x = 135,980,155.16
  5. Step 5: Solve for x
    x = 135,980,155.16/13,349.62
  6. Step 6: Final answer
    x = 10,186.07

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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.