Home / 10,320.20-14,241.80-5,604.40

Finding the Fourth Proportional to 10,320.20, 14,241.80 and 5,604.40

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Solution

The fourth proportional to 10,320.20, 14,241.80 and 5,604.40 is: 7,734.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,320.20 : 14,241.80 = 5,604.40 : x
  2. Step 2: Convert to fraction form
    10,320.20/14,241.80 = 5,604.40/x
  3. Step 3: Cross multiply
    10,320.20x = 14,241.80 × 5,604.40
  4. Step 4: Simplify right side
    10,320.20x = 79,816,743.92
  5. Step 5: Solve for x
    x = 79,816,743.92/10,320.20
  6. Step 6: Final answer
    x = 7,734.03

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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.