Home / 11,349.12-15,661.76-6,313.28

Finding the Fourth Proportional to 11,349.12, 15,661.76 and 6,313.28

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Solution

The fourth proportional to 11,349.12, 15,661.76 and 6,313.28 is: 8,712.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,349.12 : 15,661.76 = 6,313.28 : x
  2. Step 2: Convert to fraction form
    11,349.12/15,661.76 = 6,313.28/x
  3. Step 3: Cross multiply
    11,349.12x = 15,661.76 × 6,313.28
  4. Step 4: Simplify right side
    11,349.12x = 98,877,076.17
  5. Step 5: Solve for x
    x = 98,877,076.17/11,349.12
  6. Step 6: Final answer
    x = 8,712.31

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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.