Home / 8,130.90-11,220.06-4,773.86

Finding the Fourth Proportional to 8,130.90, 11,220.06 and 4,773.86

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Solution

The fourth proportional to 8,130.90, 11,220.06 and 4,773.86 is: 6,587.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.90 : 11,220.06 = 4,773.86 : x
  2. Step 2: Convert to fraction form
    8,130.90/11,220.06 = 4,773.86/x
  3. Step 3: Cross multiply
    8,130.90x = 11,220.06 × 4,773.86
  4. Step 4: Simplify right side
    8,130.90x = 53,562,995.63
  5. Step 5: Solve for x
    x = 53,562,995.63/8,130.90
  6. Step 6: Final answer
    x = 6,587.59

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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.