Home / 11,145.02-15,380.63-6,365.38

Finding the Fourth Proportional to 11,145.02, 15,380.63 and 6,365.38

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Solution

The fourth proportional to 11,145.02, 15,380.63 and 6,365.38 is: 8,784.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.02 : 15,380.63 = 6,365.38 : x
  2. Step 2: Convert to fraction form
    11,145.02/15,380.63 = 6,365.38/x
  3. Step 3: Cross multiply
    11,145.02x = 15,380.63 × 6,365.38
  4. Step 4: Simplify right side
    11,145.02x = 97,903,554.59
  5. Step 5: Solve for x
    x = 97,903,554.59/11,145.02
  6. Step 6: Final answer
    x = 8,784.51

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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.