Home / 11,165.02-15,391.28-8,507.82

Finding the Fourth Proportional to 11,165.02, 15,391.28 and 8,507.82

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Solution

The fourth proportional to 11,165.02, 15,391.28 and 8,507.82 is: 11,728.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,165.02 : 15,391.28 = 8,507.82 : x
  2. Step 2: Convert to fraction form
    11,165.02/15,391.28 = 8,507.82/x
  3. Step 3: Cross multiply
    11,165.02x = 15,391.28 × 8,507.82
  4. Step 4: Simplify right side
    11,165.02x = 130,946,239.81
  5. Step 5: Solve for x
    x = 130,946,239.81/11,165.02
  6. Step 6: Final answer
    x = 11,728.26

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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.