Home / 13,059.02-18,015.42-7,750.82

Finding the Fourth Proportional to 13,059.02, 18,015.42 and 7,750.82

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Solution

The fourth proportional to 13,059.02, 18,015.42 and 7,750.82 is: 10,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,059.02 : 18,015.42 = 7,750.82 : x
  2. Step 2: Convert to fraction form
    13,059.02/18,015.42 = 7,750.82/x
  3. Step 3: Cross multiply
    13,059.02x = 18,015.42 × 7,750.82
  4. Step 4: Simplify right side
    13,059.02x = 139,634,277.64
  5. Step 5: Solve for x
    x = 139,634,277.64/13,059.02
  6. Step 6: Final answer
    x = 10,692.55

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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.