Home / 19,392.08-26,753.10-12,315.92

Finding the Fourth Proportional to 19,392.08, 26,753.10 and 12,315.92

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Solution

The fourth proportional to 19,392.08, 26,753.10 and 12,315.92 is: 16,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,392.08 : 26,753.10 = 12,315.92 : x
  2. Step 2: Convert to fraction form
    19,392.08/26,753.10 = 12,315.92/x
  3. Step 3: Cross multiply
    19,392.08x = 26,753.10 × 12,315.92
  4. Step 4: Simplify right side
    19,392.08x = 329,489,039.35
  5. Step 5: Solve for x
    x = 329,489,039.35/19,392.08
  6. Step 6: Final answer
    x = 16,990.91

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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.