Home / 13,020.13-17,967.80-7,051.81

Finding the Fourth Proportional to 13,020.13, 17,967.80 and 7,051.81

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Solution

The fourth proportional to 13,020.13, 17,967.80 and 7,051.81 is: 9,731.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.13 : 17,967.80 = 7,051.81 : x
  2. Step 2: Convert to fraction form
    13,020.13/17,967.80 = 7,051.81/x
  3. Step 3: Cross multiply
    13,020.13x = 17,967.80 × 7,051.81
  4. Step 4: Simplify right side
    13,020.13x = 126,705,511.72
  5. Step 5: Solve for x
    x = 126,705,511.72/13,020.13
  6. Step 6: Final answer
    x = 9,731.51

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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.