Home / 10,968.43-15,132.96-6,715.05

Finding the Fourth Proportional to 10,968.43, 15,132.96 and 6,715.05

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Solution

The fourth proportional to 10,968.43, 15,132.96 and 6,715.05 is: 9,264.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,968.43 : 15,132.96 = 6,715.05 : x
  2. Step 2: Convert to fraction form
    10,968.43/15,132.96 = 6,715.05/x
  3. Step 3: Cross multiply
    10,968.43x = 15,132.96 × 6,715.05
  4. Step 4: Simplify right side
    10,968.43x = 101,618,583.05
  5. Step 5: Solve for x
    x = 101,618,583.05/10,968.43
  6. Step 6: Final answer
    x = 9,264.64

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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.