Home / 11,497.18-15,866.09-6,720.41

Finding the Fourth Proportional to 11,497.18, 15,866.09 and 6,720.41

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Solution

The fourth proportional to 11,497.18, 15,866.09 and 6,720.41 is: 9,274.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,497.18 : 15,866.09 = 6,720.41 : x
  2. Step 2: Convert to fraction form
    11,497.18/15,866.09 = 6,720.41/x
  3. Step 3: Cross multiply
    11,497.18x = 15,866.09 × 6,720.41
  4. Step 4: Simplify right side
    11,497.18x = 106,626,607.03
  5. Step 5: Solve for x
    x = 106,626,607.03/11,497.18
  6. Step 6: Final answer
    x = 9,274.15

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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.