Home / 11,430.48-15,774.80-6,395.16

Finding the Fourth Proportional to 11,430.48, 15,774.80 and 6,395.16

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Solution

The fourth proportional to 11,430.48, 15,774.80 and 6,395.16 is: 8,825.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.48 : 15,774.80 = 6,395.16 : x
  2. Step 2: Convert to fraction form
    11,430.48/15,774.80 = 6,395.16/x
  3. Step 3: Cross multiply
    11,430.48x = 15,774.80 × 6,395.16
  4. Step 4: Simplify right side
    11,430.48x = 100,882,369.97
  5. Step 5: Solve for x
    x = 100,882,369.97/11,430.48
  6. Step 6: Final answer
    x = 8,825.73

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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.