Home / 8,782.41-12,124.74-5,806.87

Finding the Fourth Proportional to 8,782.41, 12,124.74 and 5,806.87

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Solution

The fourth proportional to 8,782.41, 12,124.74 and 5,806.87 is: 8,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.41 : 12,124.74 = 5,806.87 : x
  2. Step 2: Convert to fraction form
    8,782.41/12,124.74 = 5,806.87/x
  3. Step 3: Cross multiply
    8,782.41x = 12,124.74 × 5,806.87
  4. Step 4: Simplify right side
    8,782.41x = 70,406,815.97
  5. Step 5: Solve for x
    x = 70,406,815.97/8,782.41
  6. Step 6: Final answer
    x = 8,016.80

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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.