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Finding the Fourth Proportional to 9,256.56, 13,890.99 and 8,641.47

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Solution

The fourth proportional to 9,256.56, 13,890.99 and 8,641.47 is: 12,967.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,256.56 : 13,890.99 = 8,641.47 : x
  2. Step 2: Convert to fraction form
    9,256.56/13,890.99 = 8,641.47/x
  3. Step 3: Cross multiply
    9,256.56x = 13,890.99 × 8,641.47
  4. Step 4: Simplify right side
    9,256.56x = 120,038,573.36
  5. Step 5: Solve for x
    x = 120,038,573.36/9,256.56
  6. Step 6: Final answer
    x = 12,967.95

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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.