Home / 13,660.64-18,852.02-7,692.50

Finding the Fourth Proportional to 13,660.64, 18,852.02 and 7,692.50

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Solution

The fourth proportional to 13,660.64, 18,852.02 and 7,692.50 is: 10,615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.64 : 18,852.02 = 7,692.50 : x
  2. Step 2: Convert to fraction form
    13,660.64/18,852.02 = 7,692.50/x
  3. Step 3: Cross multiply
    13,660.64x = 18,852.02 × 7,692.50
  4. Step 4: Simplify right side
    13,660.64x = 145,019,230.21
  5. Step 5: Solve for x
    x = 145,019,230.21/13,660.64
  6. Step 6: Final answer
    x = 10,615.85

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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.