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Finding the Fourth Proportional to 12,860.54, 17,737.53 and 8,610.25

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Solution

The fourth proportional to 12,860.54, 17,737.53 and 8,610.25 is: 11,875.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.54 : 17,737.53 = 8,610.25 : x
  2. Step 2: Convert to fraction form
    12,860.54/17,737.53 = 8,610.25/x
  3. Step 3: Cross multiply
    12,860.54x = 17,737.53 × 8,610.25
  4. Step 4: Simplify right side
    12,860.54x = 152,724,478.99
  5. Step 5: Solve for x
    x = 152,724,478.99/12,860.54
  6. Step 6: Final answer
    x = 11,875.44

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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.