Home / 6,686.40-10,011.96-5,363.94

Finding the Fourth Proportional to 6,686.40, 10,011.96 and 5,363.94

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Solution

The fourth proportional to 6,686.40, 10,011.96 and 5,363.94 is: 8,031.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686.40 : 10,011.96 = 5,363.94 : x
  2. Step 2: Convert to fraction form
    6,686.40/10,011.96 = 5,363.94/x
  3. Step 3: Cross multiply
    6,686.40x = 10,011.96 × 5,363.94
  4. Step 4: Simplify right side
    6,686.40x = 53,703,552.72
  5. Step 5: Solve for x
    x = 53,703,552.72/6,686.40
  6. Step 6: Final answer
    x = 8,031.76

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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.