Home / 11,306.90-16,948.20-4,284.20

Finding the Fourth Proportional to 11,306.90, 16,948.20 and 4,284.20

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Solution

The fourth proportional to 11,306.90, 16,948.20 and 4,284.20 is: 6,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,306.90 : 16,948.20 = 4,284.20 : x
  2. Step 2: Convert to fraction form
    11,306.90/16,948.20 = 4,284.20/x
  3. Step 3: Cross multiply
    11,306.90x = 16,948.20 × 4,284.20
  4. Step 4: Simplify right side
    11,306.90x = 72,609,478.44
  5. Step 5: Solve for x
    x = 72,609,478.44/11,306.90
  6. Step 6: Final answer
    x = 6,421.70

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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.