Home / 14,820.31-20,459.46-11,455.52

Finding the Fourth Proportional to 14,820.31, 20,459.46 and 11,455.52

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Solution

The fourth proportional to 14,820.31, 20,459.46 and 11,455.52 is: 15,814.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,820.31 : 20,459.46 = 11,455.52 : x
  2. Step 2: Convert to fraction form
    14,820.31/20,459.46 = 11,455.52/x
  3. Step 3: Cross multiply
    14,820.31x = 20,459.46 × 11,455.52
  4. Step 4: Simplify right side
    14,820.31x = 234,373,753.22
  5. Step 5: Solve for x
    x = 234,373,753.22/14,820.31
  6. Step 6: Final answer
    x = 15,814.36

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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.