Home / 8,790.92-12,131.80-5,014.70

Finding the Fourth Proportional to 8,790.92, 12,131.80 and 5,014.70

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Solution

The fourth proportional to 8,790.92, 12,131.80 and 5,014.70 is: 6,920.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.92 : 12,131.80 = 5,014.70 : x
  2. Step 2: Convert to fraction form
    8,790.92/12,131.80 = 5,014.70/x
  3. Step 3: Cross multiply
    8,790.92x = 12,131.80 × 5,014.70
  4. Step 4: Simplify right side
    8,790.92x = 60,837,264.26
  5. Step 5: Solve for x
    x = 60,837,264.26/8,790.92
  6. Step 6: Final answer
    x = 6,920.47

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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.