Home / 19,117.20-26,390.68-12,754.40

Finding the Fourth Proportional to 19,117.20, 26,390.68 and 12,754.40

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Solution

The fourth proportional to 19,117.20, 26,390.68 and 12,754.40 is: 17,607.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,117.20 : 26,390.68 = 12,754.40 : x
  2. Step 2: Convert to fraction form
    19,117.20/26,390.68 = 12,754.40/x
  3. Step 3: Cross multiply
    19,117.20x = 26,390.68 × 12,754.40
  4. Step 4: Simplify right side
    19,117.20x = 336,597,288.99
  5. Step 5: Solve for x
    x = 336,597,288.99/19,117.20
  6. Step 6: Final answer
    x = 17,607.04

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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.