Home / 14,820.42-20,459.60-11,455.62

Finding the Fourth Proportional to 14,820.42, 20,459.60 and 11,455.62

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Solution

The fourth proportional to 14,820.42, 20,459.60 and 11,455.62 is: 15,814.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,820.42 : 20,459.60 = 11,455.62 : x
  2. Step 2: Convert to fraction form
    14,820.42/20,459.60 = 11,455.62/x
  3. Step 3: Cross multiply
    14,820.42x = 20,459.60 × 11,455.62
  4. Step 4: Simplify right side
    14,820.42x = 234,377,402.95
  5. Step 5: Solve for x
    x = 234,377,402.95/14,820.42
  6. Step 6: Final answer
    x = 15,814.49

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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.