Home / 15,423.51-23,120.55-7,109.13

Finding the Fourth Proportional to 15,423.51, 23,120.55 and 7,109.13

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Solution

The fourth proportional to 15,423.51, 23,120.55 and 7,109.13 is: 10,656.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423.51 : 23,120.55 = 7,109.13 : x
  2. Step 2: Convert to fraction form
    15,423.51/23,120.55 = 7,109.13/x
  3. Step 3: Cross multiply
    15,423.51x = 23,120.55 × 7,109.13
  4. Step 4: Simplify right side
    15,423.51x = 164,366,995.62
  5. Step 5: Solve for x
    x = 164,366,995.62/15,423.51
  6. Step 6: Final answer
    x = 10,656.91

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