Home / 10,969.02-15,137.36-6,660.86

Finding the Fourth Proportional to 10,969.02, 15,137.36 and 6,660.86

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Solution

The fourth proportional to 10,969.02, 15,137.36 and 6,660.86 is: 9,192.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,969.02 : 15,137.36 = 6,660.86 : x
  2. Step 2: Convert to fraction form
    10,969.02/15,137.36 = 6,660.86/x
  3. Step 3: Cross multiply
    10,969.02x = 15,137.36 × 6,660.86
  4. Step 4: Simplify right side
    10,969.02x = 100,827,775.56
  5. Step 5: Solve for x
    x = 100,827,775.56/10,969.02
  6. Step 6: Final answer
    x = 9,192.05

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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.