Home / 11,142.17-15,373.80-6,606.28

Finding the Fourth Proportional to 11,142.17, 15,373.80 and 6,606.28

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Solution

The fourth proportional to 11,142.17, 15,373.80 and 6,606.28 is: 9,115.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.17 : 15,373.80 = 6,606.28 : x
  2. Step 2: Convert to fraction form
    11,142.17/15,373.80 = 6,606.28/x
  3. Step 3: Cross multiply
    11,142.17x = 15,373.80 × 6,606.28
  4. Step 4: Simplify right side
    11,142.17x = 101,563,627.46
  5. Step 5: Solve for x
    x = 101,563,627.46/11,142.17
  6. Step 6: Final answer
    x = 9,115.25

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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.