Home / 13,660.61-18,851.45-7,692.86

Finding the Fourth Proportional to 13,660.61, 18,851.45 and 7,692.86

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Solution

The fourth proportional to 13,660.61, 18,851.45 and 7,692.86 is: 10,616.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.61 : 18,851.45 = 7,692.86 : x
  2. Step 2: Convert to fraction form
    13,660.61/18,851.45 = 7,692.86/x
  3. Step 3: Cross multiply
    13,660.61x = 18,851.45 × 7,692.86
  4. Step 4: Simplify right side
    13,660.61x = 145,021,432.93
  5. Step 5: Solve for x
    x = 145,021,432.93/13,660.61
  6. Step 6: Final answer
    x = 10,616.03

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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.