Home / 19,159.09-28,701.26-10,813.86

Finding the Fourth Proportional to 19,159.09, 28,701.26 and 10,813.86

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Solution

The fourth proportional to 19,159.09, 28,701.26 and 10,813.86 is: 16,199.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,159.09 : 28,701.26 = 10,813.86 : x
  2. Step 2: Convert to fraction form
    19,159.09/28,701.26 = 10,813.86/x
  3. Step 3: Cross multiply
    19,159.09x = 28,701.26 × 10,813.86
  4. Step 4: Simplify right side
    19,159.09x = 310,371,353.39
  5. Step 5: Solve for x
    x = 310,371,353.39/19,159.09
  6. Step 6: Final answer
    x = 16,199.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.