Home / 8,681.22-11,980.24-4,702.50

Finding the Fourth Proportional to 8,681.22, 11,980.24 and 4,702.50

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Solution

The fourth proportional to 8,681.22, 11,980.24 and 4,702.50 is: 6,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.22 : 11,980.24 = 4,702.50 : x
  2. Step 2: Convert to fraction form
    8,681.22/11,980.24 = 4,702.50/x
  3. Step 3: Cross multiply
    8,681.22x = 11,980.24 × 4,702.50
  4. Step 4: Simplify right side
    8,681.22x = 56,337,078.60
  5. Step 5: Solve for x
    x = 56,337,078.60/8,681.22
  6. Step 6: Final answer
    x = 6,489.53

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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.