Home / 19,235.91-26,549.81-12,160.95

Finding the Fourth Proportional to 19,235.91, 26,549.81 and 12,160.95

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Solution

The fourth proportional to 19,235.91, 26,549.81 and 12,160.95 is: 16,784.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,235.91 : 26,549.81 = 12,160.95 : x
  2. Step 2: Convert to fraction form
    19,235.91/26,549.81 = 12,160.95/x
  3. Step 3: Cross multiply
    19,235.91x = 26,549.81 × 12,160.95
  4. Step 4: Simplify right side
    19,235.91x = 322,870,851.11
  5. Step 5: Solve for x
    x = 322,870,851.11/19,235.91
  6. Step 6: Final answer
    x = 16,784.80

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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.