Home / 9,873.12-13,623.36-5,680.56

Finding the Fourth Proportional to 9,873.12, 13,623.36 and 5,680.56

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Solution

The fourth proportional to 9,873.12, 13,623.36 and 5,680.56 is: 7,838.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,873.12 : 13,623.36 = 5,680.56 : x
  2. Step 2: Convert to fraction form
    9,873.12/13,623.36 = 5,680.56/x
  3. Step 3: Cross multiply
    9,873.12x = 13,623.36 × 5,680.56
  4. Step 4: Simplify right side
    9,873.12x = 77,388,313.88
  5. Step 5: Solve for x
    x = 77,388,313.88/9,873.12
  6. Step 6: Final answer
    x = 7,838.28

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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.