Home / 14,240.52-21,357.27-6,447.78

Finding the Fourth Proportional to 14,240.52, 21,357.27 and 6,447.78

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Solution

The fourth proportional to 14,240.52, 21,357.27 and 6,447.78 is: 9,670.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,240.52 : 21,357.27 = 6,447.78 : x
  2. Step 2: Convert to fraction form
    14,240.52/21,357.27 = 6,447.78/x
  3. Step 3: Cross multiply
    14,240.52x = 21,357.27 × 6,447.78
  4. Step 4: Simplify right side
    14,240.52x = 137,706,978.36
  5. Step 5: Solve for x
    x = 137,706,978.36/14,240.52
  6. Step 6: Final answer
    x = 9,670.08

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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.