Home / 14,276.58-21,419.91-6,378.36

Finding the Fourth Proportional to 14,276.58, 21,419.91 and 6,378.36

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Solution

The fourth proportional to 14,276.58, 21,419.91 and 6,378.36 is: 9,569.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,276.58 : 21,419.91 = 6,378.36 : x
  2. Step 2: Convert to fraction form
    14,276.58/21,419.91 = 6,378.36/x
  3. Step 3: Cross multiply
    14,276.58x = 21,419.91 × 6,378.36
  4. Step 4: Simplify right side
    14,276.58x = 136,623,897.15
  5. Step 5: Solve for x
    x = 136,623,897.15/14,276.58
  6. Step 6: Final answer
    x = 9,569.79

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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.