Home / 10,287.07-15,430.67-3,623.74

Finding the Fourth Proportional to 10,287.07, 15,430.67 and 3,623.74

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Solution

The fourth proportional to 10,287.07, 15,430.67 and 3,623.74 is: 5,435.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287.07 : 15,430.67 = 3,623.74 : x
  2. Step 2: Convert to fraction form
    10,287.07/15,430.67 = 3,623.74/x
  3. Step 3: Cross multiply
    10,287.07x = 15,430.67 × 3,623.74
  4. Step 4: Simplify right side
    10,287.07x = 55,916,693.00
  5. Step 5: Solve for x
    x = 55,916,693.00/10,287.07
  6. Step 6: Final answer
    x = 5,435.63

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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.