Home / 8,197.75-11,312.90-4,661.20

Finding the Fourth Proportional to 8,197.75, 11,312.90 and 4,661.20

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Solution

The fourth proportional to 8,197.75, 11,312.90 and 4,661.20 is: 6,432.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,197.75 : 11,312.90 = 4,661.20 : x
  2. Step 2: Convert to fraction form
    8,197.75/11,312.90 = 4,661.20/x
  3. Step 3: Cross multiply
    8,197.75x = 11,312.90 × 4,661.20
  4. Step 4: Simplify right side
    8,197.75x = 52,731,666.17
  5. Step 5: Solve for x
    x = 52,731,666.17/8,197.75
  6. Step 6: Final answer
    x = 6,432.46

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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.