Home / 13,579.93-18,741.05-7,613.53

Finding the Fourth Proportional to 13,579.93, 18,741.05 and 7,613.53

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Solution

The fourth proportional to 13,579.93, 18,741.05 and 7,613.53 is: 10,507.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.93 : 18,741.05 = 7,613.53 : x
  2. Step 2: Convert to fraction form
    13,579.93/18,741.05 = 7,613.53/x
  3. Step 3: Cross multiply
    13,579.93x = 18,741.05 × 7,613.53
  4. Step 4: Simplify right side
    13,579.93x = 142,685,546.41
  5. Step 5: Solve for x
    x = 142,685,546.41/13,579.93
  6. Step 6: Final answer
    x = 10,507.09

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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.