Home / 14,218.40-21,326.82-4,357.70

Finding the Fourth Proportional to 14,218.40, 21,326.82 and 4,357.70

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Solution

The fourth proportional to 14,218.40, 21,326.82 and 4,357.70 is: 6,536.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.40 : 21,326.82 = 4,357.70 : x
  2. Step 2: Convert to fraction form
    14,218.40/21,326.82 = 4,357.70/x
  3. Step 3: Cross multiply
    14,218.40x = 21,326.82 × 4,357.70
  4. Step 4: Simplify right side
    14,218.40x = 92,935,883.51
  5. Step 5: Solve for x
    x = 92,935,883.51/14,218.40
  6. Step 6: Final answer
    x = 6,536.31

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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.