Home / 14,274.60-21,402.30-6,479.40

Finding the Fourth Proportional to 14,274.60, 21,402.30 and 6,479.40

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Solution

The fourth proportional to 14,274.60, 21,402.30 and 6,479.40 is: 9,714.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,274.60 : 21,402.30 = 6,479.40 : x
  2. Step 2: Convert to fraction form
    14,274.60/21,402.30 = 6,479.40/x
  3. Step 3: Cross multiply
    14,274.60x = 21,402.30 × 6,479.40
  4. Step 4: Simplify right side
    14,274.60x = 138,674,062.62
  5. Step 5: Solve for x
    x = 138,674,062.62/14,274.60
  6. Step 6: Final answer
    x = 9,714.74

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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.