Home / 14,690.50-20,275.68-8,725.42

Finding the Fourth Proportional to 14,690.50, 20,275.68 and 8,725.42

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Solution

The fourth proportional to 14,690.50, 20,275.68 and 8,725.42 is: 12,042.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,690.50 : 20,275.68 = 8,725.42 : x
  2. Step 2: Convert to fraction form
    14,690.50/20,275.68 = 8,725.42/x
  3. Step 3: Cross multiply
    14,690.50x = 20,275.68 × 8,725.42
  4. Step 4: Simplify right side
    14,690.50x = 176,913,823.79
  5. Step 5: Solve for x
    x = 176,913,823.79/14,690.50
  6. Step 6: Final answer
    x = 12,042.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.