Home / 17,543.25-26,315.28-7,155

Finding the Fourth Proportional to 17,543.25, 26,315.28 and 7,155

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Solution

The fourth proportional to 17,543.25, 26,315.28 and 7,155 is: 10,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,543.25 : 26,315.28 = 7,155 : x
  2. Step 2: Convert to fraction form
    17,543.25/26,315.28 = 7,155/x
  3. Step 3: Cross multiply
    17,543.25x = 26,315.28 × 7,155
  4. Step 4: Simplify right side
    17,543.25x = 188,285,828.40
  5. Step 5: Solve for x
    x = 188,285,828.40/17,543.25
  6. Step 6: Final answer
    x = 10,732.67

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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.