Home / 14,214.40-21,216.32-13,338.88

Finding the Fourth Proportional to 14,214.40, 21,216.32 and 13,338.88

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Solution

The fourth proportional to 14,214.40, 21,216.32 and 13,338.88 is: 19,909.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,214.40 : 21,216.32 = 13,338.88 : x
  2. Step 2: Convert to fraction form
    14,214.40/21,216.32 = 13,338.88/x
  3. Step 3: Cross multiply
    14,214.40x = 21,216.32 × 13,338.88
  4. Step 4: Simplify right side
    14,214.40x = 283,001,946.52
  5. Step 5: Solve for x
    x = 283,001,946.52/14,214.40
  6. Step 6: Final answer
    x = 19,909.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.