Home / 14,218.32-21,298.80-7,188.56

Finding the Fourth Proportional to 14,218.32, 21,298.80 and 7,188.56

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Solution

The fourth proportional to 14,218.32, 21,298.80 and 7,188.56 is: 10,768.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.32 : 21,298.80 = 7,188.56 : x
  2. Step 2: Convert to fraction form
    14,218.32/21,298.80 = 7,188.56/x
  3. Step 3: Cross multiply
    14,218.32x = 21,298.80 × 7,188.56
  4. Step 4: Simplify right side
    14,218.32x = 153,107,701.73
  5. Step 5: Solve for x
    x = 153,107,701.73/14,218.32
  6. Step 6: Final answer
    x = 10,768.34

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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.