Home / 19,197.81-26,490.78-11,645.91

Finding the Fourth Proportional to 19,197.81, 26,490.78 and 11,645.91

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Solution

The fourth proportional to 19,197.81, 26,490.78 and 11,645.91 is: 16,070.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,197.81 : 26,490.78 = 11,645.91 : x
  2. Step 2: Convert to fraction form
    19,197.81/26,490.78 = 11,645.91/x
  3. Step 3: Cross multiply
    19,197.81x = 26,490.78 × 11,645.91
  4. Step 4: Simplify right side
    19,197.81x = 308,509,239.71
  5. Step 5: Solve for x
    x = 308,509,239.71/19,197.81
  6. Step 6: Final answer
    x = 16,070.02

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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.