Home / 13,020.10-17,968.85-7,355.89

Finding the Fourth Proportional to 13,020.10, 17,968.85 and 7,355.89

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Solution

The fourth proportional to 13,020.10, 17,968.85 and 7,355.89 is: 10,151.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.10 : 17,968.85 = 7,355.89 : x
  2. Step 2: Convert to fraction form
    13,020.10/17,968.85 = 7,355.89/x
  3. Step 3: Cross multiply
    13,020.10x = 17,968.85 × 7,355.89
  4. Step 4: Simplify right side
    13,020.10x = 132,176,757.40
  5. Step 5: Solve for x
    x = 132,176,757.40/13,020.10
  6. Step 6: Final answer
    x = 10,151.75

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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.