Home / 14,135.77-19,543.81-13,516.12

Finding the Fourth Proportional to 14,135.77, 19,543.81 and 13,516.12

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Solution

The fourth proportional to 14,135.77, 19,543.81 and 13,516.12 is: 18,687.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.77 : 19,543.81 = 13,516.12 : x
  2. Step 2: Convert to fraction form
    14,135.77/19,543.81 = 13,516.12/x
  3. Step 3: Cross multiply
    14,135.77x = 19,543.81 × 13,516.12
  4. Step 4: Simplify right side
    14,135.77x = 264,156,349.25
  5. Step 5: Solve for x
    x = 264,156,349.25/14,135.77
  6. Step 6: Final answer
    x = 18,687.09

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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.