Home / 9,943.09-13,720.79-5,693.63

Finding the Fourth Proportional to 9,943.09, 13,720.79 and 5,693.63

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Solution

The fourth proportional to 9,943.09, 13,720.79 and 5,693.63 is: 7,856.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,943.09 : 13,720.79 = 5,693.63 : x
  2. Step 2: Convert to fraction form
    9,943.09/13,720.79 = 5,693.63/x
  3. Step 3: Cross multiply
    9,943.09x = 13,720.79 × 5,693.63
  4. Step 4: Simplify right side
    9,943.09x = 78,121,047.20
  5. Step 5: Solve for x
    x = 78,121,047.20/9,943.09
  6. Step 6: Final answer
    x = 7,856.82

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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.