Home / 12,782.48-17,623.37-9,368.73

Finding the Fourth Proportional to 12,782.48, 17,623.37 and 9,368.73

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Solution

The fourth proportional to 12,782.48, 17,623.37 and 9,368.73 is: 12,916.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,782.48 : 17,623.37 = 9,368.73 : x
  2. Step 2: Convert to fraction form
    12,782.48/17,623.37 = 9,368.73/x
  3. Step 3: Cross multiply
    12,782.48x = 17,623.37 × 9,368.73
  4. Step 4: Simplify right side
    12,782.48x = 165,108,618.64
  5. Step 5: Solve for x
    x = 165,108,618.64/12,782.48
  6. Step 6: Final answer
    x = 12,916.80

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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.