Home / 19,830.07-27,366.35-11,870.76

Finding the Fourth Proportional to 19,830.07, 27,366.35 and 11,870.76

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Solution

The fourth proportional to 19,830.07, 27,366.35 and 11,870.76 is: 16,382.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.07 : 27,366.35 = 11,870.76 : x
  2. Step 2: Convert to fraction form
    19,830.07/27,366.35 = 11,870.76/x
  3. Step 3: Cross multiply
    19,830.07x = 27,366.35 × 11,870.76
  4. Step 4: Simplify right side
    19,830.07x = 324,859,372.93
  5. Step 5: Solve for x
    x = 324,859,372.93/19,830.07
  6. Step 6: Final answer
    x = 16,382.16

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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.