Home / 13,412.14-18,507.80-7,444.06

Finding the Fourth Proportional to 13,412.14, 18,507.80 and 7,444.06

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Solution

The fourth proportional to 13,412.14, 18,507.80 and 7,444.06 is: 10,272.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.14 : 18,507.80 = 7,444.06 : x
  2. Step 2: Convert to fraction form
    13,412.14/18,507.80 = 7,444.06/x
  3. Step 3: Cross multiply
    13,412.14x = 18,507.80 × 7,444.06
  4. Step 4: Simplify right side
    13,412.14x = 137,773,173.67
  5. Step 5: Solve for x
    x = 137,773,173.67/13,412.14
  6. Step 6: Final answer
    x = 10,272.27

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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.