Home / 8,343.56-11,513.58-4,985.30

Finding the Fourth Proportional to 8,343.56, 11,513.58 and 4,985.30

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Solution

The fourth proportional to 8,343.56, 11,513.58 and 4,985.30 is: 6,879.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343.56 : 11,513.58 = 4,985.30 : x
  2. Step 2: Convert to fraction form
    8,343.56/11,513.58 = 4,985.30/x
  3. Step 3: Cross multiply
    8,343.56x = 11,513.58 × 4,985.30
  4. Step 4: Simplify right side
    8,343.56x = 57,398,592.81
  5. Step 5: Solve for x
    x = 57,398,592.81/8,343.56
  6. Step 6: Final answer
    x = 6,879.39

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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.