Home / 10,315.35-15,470.54-4,763.36

Finding the Fourth Proportional to 10,315.35, 15,470.54 and 4,763.36

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Solution

The fourth proportional to 10,315.35, 15,470.54 and 4,763.36 is: 7,143.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.35 : 15,470.54 = 4,763.36 : x
  2. Step 2: Convert to fraction form
    10,315.35/15,470.54 = 4,763.36/x
  3. Step 3: Cross multiply
    10,315.35x = 15,470.54 × 4,763.36
  4. Step 4: Simplify right side
    10,315.35x = 73,691,751.41
  5. Step 5: Solve for x
    x = 73,691,751.41/10,315.35
  6. Step 6: Final answer
    x = 7,143.89

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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.