Home / 13,316.72-19,968.69-6,290.88

Finding the Fourth Proportional to 13,316.72, 19,968.69 and 6,290.88

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Solution

The fourth proportional to 13,316.72, 19,968.69 and 6,290.88 is: 9,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.72 : 19,968.69 = 6,290.88 : x
  2. Step 2: Convert to fraction form
    13,316.72/19,968.69 = 6,290.88/x
  3. Step 3: Cross multiply
    13,316.72x = 19,968.69 × 6,290.88
  4. Step 4: Simplify right side
    13,316.72x = 125,620,581.26
  5. Step 5: Solve for x
    x = 125,620,581.26/13,316.72
  6. Step 6: Final answer
    x = 9,433.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.