Home / 8,702.69-13,045.02-3,430.55

Finding the Fourth Proportional to 8,702.69, 13,045.02 and 3,430.55

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Solution

The fourth proportional to 8,702.69, 13,045.02 and 3,430.55 is: 5,142.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.69 : 13,045.02 = 3,430.55 : x
  2. Step 2: Convert to fraction form
    8,702.69/13,045.02 = 3,430.55/x
  3. Step 3: Cross multiply
    8,702.69x = 13,045.02 × 3,430.55
  4. Step 4: Simplify right side
    8,702.69x = 44,751,613.11
  5. Step 5: Solve for x
    x = 44,751,613.11/8,702.69
  6. Step 6: Final answer
    x = 5,142.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.