Home / 9,403.88-12,972.34-7,632.36

Finding the Fourth Proportional to 9,403.88, 12,972.34 and 7,632.36

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Solution

The fourth proportional to 9,403.88, 12,972.34 and 7,632.36 is: 10,528.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.88 : 12,972.34 = 7,632.36 : x
  2. Step 2: Convert to fraction form
    9,403.88/12,972.34 = 7,632.36/x
  3. Step 3: Cross multiply
    9,403.88x = 12,972.34 × 7,632.36
  4. Step 4: Simplify right side
    9,403.88x = 99,009,568.92
  5. Step 5: Solve for x
    x = 99,009,568.92/9,403.88
  6. Step 6: Final answer
    x = 10,528.59

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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.