Home / 19,390.83-26,761.86-11,835.59

Finding the Fourth Proportional to 19,390.83, 26,761.86 and 11,835.59

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Solution

The fourth proportional to 19,390.83, 26,761.86 and 11,835.59 is: 16,334.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.83 : 26,761.86 = 11,835.59 : x
  2. Step 2: Convert to fraction form
    19,390.83/26,761.86 = 11,835.59/x
  3. Step 3: Cross multiply
    19,390.83x = 26,761.86 × 11,835.59
  4. Step 4: Simplify right side
    19,390.83x = 316,742,209.61
  5. Step 5: Solve for x
    x = 316,742,209.61/19,390.83
  6. Step 6: Final answer
    x = 16,334.64

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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.