Home / 15,282.84-21,091.08-9,313.56

Finding the Fourth Proportional to 15,282.84, 21,091.08 and 9,313.56

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Solution

The fourth proportional to 15,282.84, 21,091.08 and 9,313.56 is: 12,853.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,282.84 : 21,091.08 = 9,313.56 : x
  2. Step 2: Convert to fraction form
    15,282.84/21,091.08 = 9,313.56/x
  3. Step 3: Cross multiply
    15,282.84x = 21,091.08 × 9,313.56
  4. Step 4: Simplify right side
    15,282.84x = 196,433,039.04
  5. Step 5: Solve for x
    x = 196,433,039.04/15,282.84
  6. Step 6: Final answer
    x = 12,853.18

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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.