Home / 10,767.20-14,860.40-6,290.87

Finding the Fourth Proportional to 10,767.20, 14,860.40 and 6,290.87

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Solution

The fourth proportional to 10,767.20, 14,860.40 and 6,290.87 is: 8,682.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,767.20 : 14,860.40 = 6,290.87 : x
  2. Step 2: Convert to fraction form
    10,767.20/14,860.40 = 6,290.87/x
  3. Step 3: Cross multiply
    10,767.20x = 14,860.40 × 6,290.87
  4. Step 4: Simplify right side
    10,767.20x = 93,484,738.79
  5. Step 5: Solve for x
    x = 93,484,738.79/10,767.20
  6. Step 6: Final answer
    x = 8,682.37

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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.