Home / 19,711.84-27,184.58-12,636.88

Finding the Fourth Proportional to 19,711.84, 27,184.58 and 12,636.88

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Solution

The fourth proportional to 19,711.84, 27,184.58 and 12,636.88 is: 17,427.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711.84 : 27,184.58 = 12,636.88 : x
  2. Step 2: Convert to fraction form
    19,711.84/27,184.58 = 12,636.88/x
  3. Step 3: Cross multiply
    19,711.84x = 27,184.58 × 12,636.88
  4. Step 4: Simplify right side
    19,711.84x = 343,528,275.31
  5. Step 5: Solve for x
    x = 343,528,275.31/19,711.84
  6. Step 6: Final answer
    x = 17,427.51

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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.