Home / 14,191.36-19,603.20-12,866.56

Finding the Fourth Proportional to 14,191.36, 19,603.20 and 12,866.56

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Solution

The fourth proportional to 14,191.36, 19,603.20 and 12,866.56 is: 17,773.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,191.36 : 19,603.20 = 12,866.56 : x
  2. Step 2: Convert to fraction form
    14,191.36/19,603.20 = 12,866.56/x
  3. Step 3: Cross multiply
    14,191.36x = 19,603.20 × 12,866.56
  4. Step 4: Simplify right side
    14,191.36x = 252,225,748.99
  5. Step 5: Solve for x
    x = 252,225,748.99/14,191.36
  6. Step 6: Final answer
    x = 17,773.19

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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.