Home / 11,190.34-15,440.49-6,712.46

Finding the Fourth Proportional to 11,190.34, 15,440.49 and 6,712.46

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Solution

The fourth proportional to 11,190.34, 15,440.49 and 6,712.46 is: 9,261.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.34 : 15,440.49 = 6,712.46 : x
  2. Step 2: Convert to fraction form
    11,190.34/15,440.49 = 6,712.46/x
  3. Step 3: Cross multiply
    11,190.34x = 15,440.49 × 6,712.46
  4. Step 4: Simplify right side
    11,190.34x = 103,643,671.51
  5. Step 5: Solve for x
    x = 103,643,671.51/11,190.34
  6. Step 6: Final answer
    x = 9,261.89

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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.