Home / 7,916.02-11,895.57-4,220.86

Finding the Fourth Proportional to 7,916.02, 11,895.57 and 4,220.86

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Solution

The fourth proportional to 7,916.02, 11,895.57 and 4,220.86 is: 6,342.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.02 : 11,895.57 = 4,220.86 : x
  2. Step 2: Convert to fraction form
    7,916.02/11,895.57 = 4,220.86/x
  3. Step 3: Cross multiply
    7,916.02x = 11,895.57 × 4,220.86
  4. Step 4: Simplify right side
    7,916.02x = 50,209,535.59
  5. Step 5: Solve for x
    x = 50,209,535.59/7,916.02
  6. Step 6: Final answer
    x = 6,342.78

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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.