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Finding the Fourth Proportional to 9,345.70, 14,026.20 and 9,272.80

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Solution

The fourth proportional to 9,345.70, 14,026.20 and 9,272.80 is: 13,916.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.70 : 14,026.20 = 9,272.80 : x
  2. Step 2: Convert to fraction form
    9,345.70/14,026.20 = 9,272.80/x
  3. Step 3: Cross multiply
    9,345.70x = 14,026.20 × 9,272.80
  4. Step 4: Simplify right side
    9,345.70x = 130,062,147.36
  5. Step 5: Solve for x
    x = 130,062,147.36/9,345.70
  6. Step 6: Final answer
    x = 13,916.79

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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.