Home / 14,665.04-20,253-11,272.40

Finding the Fourth Proportional to 14,665.04, 20,253 and 11,272.40

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Solution

The fourth proportional to 14,665.04, 20,253 and 11,272.40 is: 15,567.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,665.04 : 20,253 = 11,272.40 : x
  2. Step 2: Convert to fraction form
    14,665.04/20,253 = 11,272.40/x
  3. Step 3: Cross multiply
    14,665.04x = 20,253 × 11,272.40
  4. Step 4: Simplify right side
    14,665.04x = 228,299,917.20
  5. Step 5: Solve for x
    x = 228,299,917.20/14,665.04
  6. Step 6: Final answer
    x = 15,567.63

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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.