Home / 8,430.10-11,618.02-6,757.04

Finding the Fourth Proportional to 8,430.10, 11,618.02 and 6,757.04

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Solution

The fourth proportional to 8,430.10, 11,618.02 and 6,757.04 is: 9,312.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.10 : 11,618.02 = 6,757.04 : x
  2. Step 2: Convert to fraction form
    8,430.10/11,618.02 = 6,757.04/x
  3. Step 3: Cross multiply
    8,430.10x = 11,618.02 × 6,757.04
  4. Step 4: Simplify right side
    8,430.10x = 78,503,425.86
  5. Step 5: Solve for x
    x = 78,503,425.86/8,430.10
  6. Step 6: Final answer
    x = 9,312.28

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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.