Home / 8,770.30-12,102.37-4,790.57

Finding the Fourth Proportional to 8,770.30, 12,102.37 and 4,790.57

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Solution

The fourth proportional to 8,770.30, 12,102.37 and 4,790.57 is: 6,610.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.30 : 12,102.37 = 4,790.57 : x
  2. Step 2: Convert to fraction form
    8,770.30/12,102.37 = 4,790.57/x
  3. Step 3: Cross multiply
    8,770.30x = 12,102.37 × 4,790.57
  4. Step 4: Simplify right side
    8,770.30x = 57,977,178.16
  5. Step 5: Solve for x
    x = 57,977,178.16/8,770.30
  6. Step 6: Final answer
    x = 6,610.63

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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.