Home / 14,874.60-20,530.35-8,909.76

Finding the Fourth Proportional to 14,874.60, 20,530.35 and 8,909.76

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Solution

The fourth proportional to 14,874.60, 20,530.35 and 8,909.76 is: 12,297.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,874.60 : 20,530.35 = 8,909.76 : x
  2. Step 2: Convert to fraction form
    14,874.60/20,530.35 = 8,909.76/x
  3. Step 3: Cross multiply
    14,874.60x = 20,530.35 × 8,909.76
  4. Step 4: Simplify right side
    14,874.60x = 182,920,491.22
  5. Step 5: Solve for x
    x = 182,920,491.22/14,874.60
  6. Step 6: Final answer
    x = 12,297.51

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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.