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Finding the Fourth Proportional to 8,995.39, 13,495.72 and 4,615.90

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Solution

The fourth proportional to 8,995.39, 13,495.72 and 4,615.90 is: 6,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.39 : 13,495.72 = 4,615.90 : x
  2. Step 2: Convert to fraction form
    8,995.39/13,495.72 = 4,615.90/x
  3. Step 3: Cross multiply
    8,995.39x = 13,495.72 × 4,615.90
  4. Step 4: Simplify right side
    8,995.39x = 62,294,893.95
  5. Step 5: Solve for x
    x = 62,294,893.95/8,995.39
  6. Step 6: Final answer
    x = 6,925.20

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1.5x scale

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.