Home / 14,742.55-20,345.10-8,028.46

Finding the Fourth Proportional to 14,742.55, 20,345.10 and 8,028.46

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Solution

The fourth proportional to 14,742.55, 20,345.10 and 8,028.46 is: 11,079.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.55 : 20,345.10 = 8,028.46 : x
  2. Step 2: Convert to fraction form
    14,742.55/20,345.10 = 8,028.46/x
  3. Step 3: Cross multiply
    14,742.55x = 20,345.10 × 8,028.46
  4. Step 4: Simplify right side
    14,742.55x = 163,339,719.82
  5. Step 5: Solve for x
    x = 163,339,719.82/14,742.55
  6. Step 6: Final answer
    x = 11,079.48

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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.