Home / 9,811.49-13,539.79-5,335.16

Finding the Fourth Proportional to 9,811.49, 13,539.79 and 5,335.16

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Solution

The fourth proportional to 9,811.49, 13,539.79 and 5,335.16 is: 7,362.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,811.49 : 13,539.79 = 5,335.16 : x
  2. Step 2: Convert to fraction form
    9,811.49/13,539.79 = 5,335.16/x
  3. Step 3: Cross multiply
    9,811.49x = 13,539.79 × 5,335.16
  4. Step 4: Simplify right side
    9,811.49x = 72,236,864.98
  5. Step 5: Solve for x
    x = 72,236,864.98/9,811.49
  6. Step 6: Final answer
    x = 7,362.48

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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.