Home / 13,765.04-20,648.94-4,402.71

Finding the Fourth Proportional to 13,765.04, 20,648.94 and 4,402.71

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Solution

The fourth proportional to 13,765.04, 20,648.94 and 4,402.71 is: 6,604.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.04 : 20,648.94 = 4,402.71 : x
  2. Step 2: Convert to fraction form
    13,765.04/20,648.94 = 4,402.71/x
  3. Step 3: Cross multiply
    13,765.04x = 20,648.94 × 4,402.71
  4. Step 4: Simplify right side
    13,765.04x = 90,911,278.12
  5. Step 5: Solve for x
    x = 90,911,278.12/13,765.04
  6. Step 6: Final answer
    x = 6,604.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.