Home / 14,263.24-19,681.12-8,131

Finding the Fourth Proportional to 14,263.24, 19,681.12 and 8,131

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Solution

The fourth proportional to 14,263.24, 19,681.12 and 8,131 is: 11,219.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,263.24 : 19,681.12 = 8,131 : x
  2. Step 2: Convert to fraction form
    14,263.24/19,681.12 = 8,131/x
  3. Step 3: Cross multiply
    14,263.24x = 19,681.12 × 8,131
  4. Step 4: Simplify right side
    14,263.24x = 160,027,186.72
  5. Step 5: Solve for x
    x = 160,027,186.72/14,263.24
  6. Step 6: Final answer
    x = 11,219.55

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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.