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Finding the Fourth Proportional to 8,986.59, 12,401.49 and 4,953.28

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Solution

The fourth proportional to 8,986.59, 12,401.49 and 4,953.28 is: 6,835.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.59 : 12,401.49 = 4,953.28 : x
  2. Step 2: Convert to fraction form
    8,986.59/12,401.49 = 4,953.28/x
  3. Step 3: Cross multiply
    8,986.59x = 12,401.49 × 4,953.28
  4. Step 4: Simplify right side
    8,986.59x = 61,428,027.62
  5. Step 5: Solve for x
    x = 61,428,027.62/8,986.59
  6. Step 6: Final answer
    x = 6,835.52

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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.