Home / 11,097.79-15,315.40-6,382.07

Finding the Fourth Proportional to 11,097.79, 15,315.40 and 6,382.07

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Solution

The fourth proportional to 11,097.79, 15,315.40 and 6,382.07 is: 8,807.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,097.79 : 15,315.40 = 6,382.07 : x
  2. Step 2: Convert to fraction form
    11,097.79/15,315.40 = 6,382.07/x
  3. Step 3: Cross multiply
    11,097.79x = 15,315.40 × 6,382.07
  4. Step 4: Simplify right side
    11,097.79x = 97,743,954.88
  5. Step 5: Solve for x
    x = 97,743,954.88/11,097.79
  6. Step 6: Final answer
    x = 8,807.52

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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.