Home / 13,020.11-17,967.75-7,051.78

Finding the Fourth Proportional to 13,020.11, 17,967.75 and 7,051.78

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Solution

The fourth proportional to 13,020.11, 17,967.75 and 7,051.78 is: 9,731.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.11 : 17,967.75 = 7,051.78 : x
  2. Step 2: Convert to fraction form
    13,020.11/17,967.75 = 7,051.78/x
  3. Step 3: Cross multiply
    13,020.11x = 17,967.75 × 7,051.78
  4. Step 4: Simplify right side
    13,020.11x = 126,704,620.10
  5. Step 5: Solve for x
    x = 126,704,620.10/13,020.11
  6. Step 6: Final answer
    x = 9,731.45

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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.