Home / 13,757.08-18,984.96-7,788.62

Finding the Fourth Proportional to 13,757.08, 18,984.96 and 7,788.62

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Solution

The fourth proportional to 13,757.08, 18,984.96 and 7,788.62 is: 10,748.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.08 : 18,984.96 = 7,788.62 : x
  2. Step 2: Convert to fraction form
    13,757.08/18,984.96 = 7,788.62/x
  3. Step 3: Cross multiply
    13,757.08x = 18,984.96 × 7,788.62
  4. Step 4: Simplify right side
    13,757.08x = 147,866,505.29
  5. Step 5: Solve for x
    x = 147,866,505.29/13,757.08
  6. Step 6: Final answer
    x = 10,748.40

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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.