Home / 12,359.04-17,083.51-11,378.16

Finding the Fourth Proportional to 12,359.04, 17,083.51 and 11,378.16

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Solution

The fourth proportional to 12,359.04, 17,083.51 and 11,378.16 is: 15,727.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.04 : 17,083.51 = 11,378.16 : x
  2. Step 2: Convert to fraction form
    12,359.04/17,083.51 = 11,378.16/x
  3. Step 3: Cross multiply
    12,359.04x = 17,083.51 × 11,378.16
  4. Step 4: Simplify right side
    12,359.04x = 194,378,910.14
  5. Step 5: Solve for x
    x = 194,378,910.14/12,359.04
  6. Step 6: Final answer
    x = 15,727.67

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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.