Home / 14,272.60-21,399.30-6,477.40

Finding the Fourth Proportional to 14,272.60, 21,399.30 and 6,477.40

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Solution

The fourth proportional to 14,272.60, 21,399.30 and 6,477.40 is: 9,711.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,272.60 : 21,399.30 = 6,477.40 : x
  2. Step 2: Convert to fraction form
    14,272.60/21,399.30 = 6,477.40/x
  3. Step 3: Cross multiply
    14,272.60x = 21,399.30 × 6,477.40
  4. Step 4: Simplify right side
    14,272.60x = 138,611,825.82
  5. Step 5: Solve for x
    x = 138,611,825.82/14,272.60
  6. Step 6: Final answer
    x = 9,711.74

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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.