Home / 14,012.20-19,318.35-11,320.39

Finding the Fourth Proportional to 14,012.20, 19,318.35 and 11,320.39

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Solution

The fourth proportional to 14,012.20, 19,318.35 and 11,320.39 is: 15,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,012.20 : 19,318.35 = 11,320.39 : x
  2. Step 2: Convert to fraction form
    14,012.20/19,318.35 = 11,320.39/x
  3. Step 3: Cross multiply
    14,012.20x = 19,318.35 × 11,320.39
  4. Step 4: Simplify right side
    14,012.20x = 218,691,256.16
  5. Step 5: Solve for x
    x = 218,691,256.16/14,012.20
  6. Step 6: Final answer
    x = 15,607.20

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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.